Error(s) in re-building vignettes:
--- re-building ‘dp.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 30-41 (dp.Rmd) 
Error: processing vignette 'dp.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘dp.Rmd’

--- re-building ‘extend_classification.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 ‘extend_classification.Rmd’

--- re-building ‘extend_embedding.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 ‘extend_embedding.Rmd’

--- re-building ‘lol.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 31-42 (lol.Rmd) 
Error: processing vignette 'lol.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘lol.Rmd’

--- re-building ‘lrcca.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 30-41 (lrcca.Rmd) 
Error: processing vignette 'lrcca.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘lrcca.Rmd’

--- re-building ‘lrlda.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 31-42 (lrlda.Rmd) 
Error: processing vignette 'lrlda.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘lrlda.Rmd’

--- re-building ‘nearestCentroid.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 27-40 (nearestCentroid.Rmd) 
Error: processing vignette 'nearestCentroid.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘nearestCentroid.Rmd’

--- re-building ‘pca.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 31-42 (pca.Rmd) 
Error: processing vignette 'pca.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘pca.Rmd’

--- re-building ‘pls.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 31-42 (pls.Rmd) 
Error: processing vignette 'pls.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘pls.Rmd’

--- re-building ‘rp.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 30-41 (rp.Rmd) 
Error: processing vignette 'rp.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘rp.Rmd’

--- re-building ‘simulations.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 36-40 (simulations.Rmd) 
Error: processing vignette 'simulations.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘simulations.Rmd’

--- re-building ‘xval.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 25-36 (xval.Rmd) 
Error: processing vignette 'xval.Rmd' failed with diagnostics:
polygon edge not found
--- failed re-building ‘xval.Rmd’

SUMMARY: processing the following files failed:
  ‘dp.Rmd’ ‘lol.Rmd’ ‘lrcca.Rmd’ ‘lrlda.Rmd’ ‘nearestCentroid.Rmd’
  ‘pca.Rmd’ ‘pls.Rmd’ ‘rp.Rmd’ ‘simulations.Rmd’ ‘xval.Rmd’

Error: Vignette re-building failed.
Execution halted