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

--- re-building ‘retype.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Quitting from lines 95-107 (retype.Rmd) 
Error: processing vignette 'retype.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘retype.Rmd’

--- re-building ‘s.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Warning in max(sold_sodas, na.rm = T) :
  no non-missing arguments to max; returning -Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
Warning in max(height[species == "Human"]) :
  no non-missing arguments to max; returning -Inf
--- finished re-building ‘s.Rmd’

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

Error: Vignette re-building failed.
Execution halted