Error(s) in re-building vignettes:
--- re-building ‘applications.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_convert, x, as.integer(whatfrom), as.integer(whatto),  :
  no font could be found for family "Arial"
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  font "Helvetica" could not be found for family "sans"
Quitting from lines 57-64 (applications.Rmd) 
Error: processing vignette 'applications.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘applications.Rmd’

--- re-building ‘data.tree.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in axis(side = side, at = at, labels = labels, ...) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  no font could be found for family "Arial"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in text.default(x, y, labels = labels, col = label.color, family = label.family,  :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  font "Times-Roman" could not be found for family "serif"
PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
Quitting from lines 513-516 (data.tree.Rmd) 
Error: processing vignette 'data.tree.Rmd' failed with diagnostics:
invalid 'path' argument
--- failed re-building ‘data.tree.Rmd’

SUMMARY: processing the following files failed:
  ‘applications.Rmd’ ‘data.tree.Rmd’

Error: Vignette re-building failed.
Execution halted