Error(s) in re-building vignettes:
--- re-building 'arrangeGrob.rmd' using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Quitting from lines 24-33 (arrangeGrob.rmd) 
Error: processing vignette 'arrangeGrob.rmd' failed with diagnostics:
package or namespace load failed for 'ggplot2' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
--- failed re-building 'arrangeGrob.rmd'

--- re-building 'gtable.Rmd' using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Loading required package: knitr
Loading required package: gridExtra
Loading required package: grid
Loading required package: gtable
Loading required package: ggplot2
Error: package or namespace load failed for 'ggplot2' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Quitting from lines 39-48 (gtable.Rmd) 
Error: processing vignette 'gtable.Rmd' failed with diagnostics:
could not find function "ggplotGrob"
--- failed re-building 'gtable.Rmd'

--- re-building 'ngonGrob.Rmd' using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
--- finished re-building 'ngonGrob.Rmd'

--- re-building 'tableGrob.Rmd' using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
--- finished re-building 'tableGrob.Rmd'

SUMMARY: processing the following files failed:
  'arrangeGrob.rmd' 'gtable.Rmd'

Error: Vignette re-building failed.
Execution halted