Error(s) in re-building vignettes:
--- re-building ‘JAGS-comparison.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘JAGS-comparison.Rmd’

--- re-building ‘random-effects.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘random-effects.Rmd’

--- re-building ‘ubms.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Loading required package: lattice
Warning: 22 sites have been discarded because of missing data.

Attaching package: 'ubms'

The following objects are masked from 'package:unmarked':

    fitList, projected

Warning: Bulk Effective Samples Size (ESS) is too low, indicating posterior means and medians may be unreliable.
Running the chains for more iterations may help. See
http://mc-stan.org/misc/warnings.html#bulk-ess
Warning: Tail Effective Samples Size (ESS) is too low, indicating posterior variances and tail quantiles may be unreliable.
Running the chains for more iterations may help. See
http://mc-stan.org/misc/warnings.html#tail-ess
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) :
  no font could be found for family "Arial"
Warning in axis(1, ...) : no font could be found for family "Arial"
Warning in axis(1, ...) : no font could be found for family "Arial"
Warning in axis(1, ...) : no font could be found for family "Arial"
Warning in axis(1, ...) : no font could be found for family "Arial"
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Warning in axis(1, ...) : no font could be found for family "Arial"
Warning in axis(1, ...) : no font could be found for family "Arial"
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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 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: Some Pareto k diagnostic values are too high. See help('pareto-k-diagnostic') for details.

Warning: Some Pareto k diagnostic values are too high. See help('pareto-k-diagnostic') for details.

Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  no font could be found for family "Arial"
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  no font could be found for family "Arial"
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  no font could be found for family "Arial"
Quitting from lines 305-306 (ubms.Rmd) 
Error: processing vignette 'ubms.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘ubms.Rmd’

SUMMARY: processing the following file failed:
  ‘ubms.Rmd’

Error: Vignette re-building failed.
Execution halted