Error(s) in re-building vignettes:
  ...
--- re-building ‘rootSolve.Rnw’ using Sweave
Error: processing vignette 'rootSolve.Rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘rootSolve.tex’ failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.80 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.80 \begin{document}
                     
--- failed re-building ‘rootSolve.Rnw’

SUMMARY: processing the following file failed:
  ‘rootSolve.Rnw’

Error: Vignette re-building failed.
Execution halted