Error(s) in re-building vignettes:
--- re-building ‘rtf.Rnw’ using Sweave
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 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 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 title(...) : no font could be found for family "Arial"
Warning in title(...) : no font could be found for family "Arial"
Warning in title(...) : no font could be found for family "Arial"
Warning in title(...) : 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 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 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 title(...) : no font could be found for family "Arial"
Warning in title(...) : no font could be found for family "Arial"
Warning in title(...) : no font could be found for family "Arial"
Warning in title(...) : no font could be found for family "Arial"
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  no font could be found for family "Arial"

Error: processing vignette 'rtf.Rnw' failed with diagnostics:
 chunk 24 
Error in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  : 
  polygon edge not found

--- failed re-building ‘rtf.Rnw’

SUMMARY: processing the following file failed:
  ‘rtf.Rnw’

Error: Vignette re-building failed.
Execution halted