Error(s) in re-building vignettes:
  ...
--- re-building ‘S4_brob.Rnw’ using Sweave
Creating a new generic function for ‘max’ in the global environment
Creating a new generic function for ‘min’ in the global environment
Creating a new generic function for ‘range’ in the global environment
Creating a new generic function for ‘prod’ in the global environment
Creating a new generic function for ‘sum’ in the global environment
Error: processing vignette 'S4_brob.Rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘S4_brob.tex’ failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.37 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.37 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.37 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.37 \begin{document}
                     
--- failed re-building ‘S4_brob.Rnw’

--- re-building ‘brobpaper.Rnw’ using Sweave
Loading required package: Brobdingnag

Attaching package: ‘Brobdingnag’

The following objects are masked from ‘package:base’:

    max, min, prod, range, sum

Error: processing vignette 'brobpaper.Rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘brobpaper.tex’ failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.37 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.37 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.37 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.37 \begin{document}
                     
--- failed re-building ‘brobpaper.Rnw’

SUMMARY: processing the following files failed:
  ‘S4_brob.Rnw’ ‘brobpaper.Rnw’

Error: Vignette re-building failed.
Execution halted