Error(s) in re-building vignettes:
--- re-building 'article.Rnw' using Sweave
Loading required package: glmnet
Loading required package: Matrix
Loaded glmnet 4.1-3
Loading required package: foreach
Loading required package: MASS
Loading required package: iterators
Warning: glm.fit: algorithm did not converge
Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
Warning: glm.fit: algorithm did not converge
Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
Warning: glm.fit: algorithm did not converge
Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
Warning: glm.fit: algorithm did not converge
Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
Warning in system(paste(shQuote(texi2dvi), if (quiet) "--quiet" else "",  :
  running command '"C:\PROGRA~1\MiKTeX\miktex\bin\x64\texify.exe" --quiet --pdf "article.tex" --max-iterations=20 -I "C:/r_packages/rinst/share/texmf/tex/latex" -I "C:/r_packages/rinst/share/texmf/bibtex/bst"' had status 1
Error: processing vignette 'article.Rnw' failed with diagnostics:
running 'texi2dvi' on 'article.tex' failed

LaTeX errors:
ex:294: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
ex:782: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
ex:1052: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
ex:1136: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
ex:1266: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              

--- failed re-building 'article.Rnw'

SUMMARY: processing the following file failed:
  'article.Rnw'

Error: Vignette re-building failed.
Execution halted