Error(s) in re-building vignettes:
  ...
--- re-building ‘cotram.Rnw’ using knitr
Loading required package: tram
Loading required package: mlt
Loading required package: basefun
Loading required package: variables
trying URL 'https://zenodo.org/record/17179/files/DVC.tgz'
Content type 'application/octet-stream' length 2292581 bytes (2.2 MB)
==================================================
downloaded 2.2 MB

Error: processing vignette 'cotram.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'cotram.tex' failed.
LaTeX errors:
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.212 
      
! Extra }, or forgotten \endgroup.
l.213 }
       
I've deleted a group-closing symbol because it seems to be
spurious, as in `$x}$'. But perhaps the } is legitimate and
! Extra }, or forgotten \endgroup.
\@endfloatbox ...pagefalse \outer@nobreak \egroup 
                                                  \color@endbox 
l.224 \end{figure}
                  
! LaTeX Error: \begin{Schunk} on input line 202 ended by \end{figure}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.302 
      
! Extra }, or forgotten \endgroup.
l.303 }
       
I've deleted a group-closing symbol because it seems to be
spurious, as in `$x}$'. But perhaps the } is legitimate and
! Extra }, or forgotten \endgroup.
\@endfloatbox ...pagefalse \outer@nobreak \egroup 
                                                  \color@endbox 
l.308 \end{figure}
                  
! You can't use `\vadjust' in internal vertical mode.
\end@float ...nalty \@floatpenalty \else \vadjust 
                                                  {\penalty -\@Miv \vbox {}\...
l.308 \end{figure}
                  
! LaTeX Error: \begin{Schunk} on input line 298 ended by \end{figure}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Not in outer par mode.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.361 
      
! Extra }, or forgotten \endgroup.
l.362 }
       
I've deleted a group-closing symbol because it seems to be
spurious, as in `$x}$'. But perhaps the } is legitimate and
! Extra }, or forgotten \endgroup.
\@endfloatbox ...pagefalse \outer@nobreak \egroup 
                                                  \color@endbox 
l.367 \end{figure}
                  
! LaTeX Error: \begin{Schunk} on input line 352 ended by \end{figure}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.411 
      
! Extra }, or forgotten \endgroup.
l.412 }
       
I've deleted a group-closing symbol because it seems to be
spurious, as in `$x}$'. But perhaps the } is legitimate and
! Extra }, or forgotten \endgroup.
\@endfloatbox ...pagefalse \outer@nobreak \egroup 
                                                  \color@endbox 
l.417 \end{figure}
                  
! You can't use `\vadjust' in internal vertical mode.
\end@float ...nalty \@floatpenalty \else \vadjust 
                                                  {\penalty -\@Miv \vbox {}\...
l.417 \end{figure}
                  
! LaTeX Error: \begin{Schunk} on input line 401 ended by \end{figure}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Argument of \@tempa has an extra }.
<inserted text> 
                \par 
l.437 ...pdf[pages=1-,nup=1]{count_transformation}
                                                  
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.437 ...pdf[pages=1-,nup=1]{count_transformation}
                                                  
! Extra }, or forgotten \endgroup.
<recently read> }
                 
l.437 ...pdf[pages=1-,nup=1]{count_transformation}
                                                  
! Undefined control sequence.
\AM@getpagecount ...ource {\AM@currentdocname@fix 
                                                  }\edef \AM@pagecount {\the...
l.437 ...pdf[pages=1-,nup=1]{count_transformation}
                                                  
!pdfTeX error: pdflatex (file /usr/local/texlive/2019/texmf-dist/tex/latex/tool
s/.tex): unknown type of image
 ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘cotram.Rnw’

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

Error: Vignette re-building failed.
Execution halted