Error(s) in re-building vignettes:
  ...
--- re-building ‘PDE.Rnw’ using Sweave
Loading required package: rootSolve
Loading required package: deSolve
Loading required package: shape
Error: processing vignette 'PDE.Rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘PDE.tex’ failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.79 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.79 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.79 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.79 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.79 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.79 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.79 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.79 \begin{document}
                     
--- failed re-building ‘PDE.Rnw’

--- re-building ‘ReacTran.rnw’ using Sweave
Loading required package: rootSolve
Loading required package: deSolve
Loading required package: shape
Error: processing vignette 'ReacTran.rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘ReacTran.tex’ failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.75 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.75 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.75 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.75 \begin{document}
                     
--- failed re-building ‘ReacTran.rnw’

SUMMARY: processing the following files failed:
  ‘PDE.Rnw’ ‘ReacTran.rnw’

Error: Vignette re-building failed.
Execution halted