Error(s) in re-building vignettes:
--- re-building ‘wnominate.Rnw’ using Sweave
Loading required package: pscl
Classes and Methods for R developed in the
Political Science Computational Laboratory
Department of Political Science
Stanford University
Simon Jackman
hurdle and zeroinfl functions by Achim Zeileis

## W-NOMINATE Ideal Point Package
## Copyright 2006 -2019
## Keith Poole, Jeffrey Lewis, James Lo, and Royce Carroll
## Support provided by the U.S. National Science Foundation
## NSF Grant SES-0611974

Error: processing vignette 'wnominate.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'wnominate.tex' failed.
LaTeX errors:
! Undefined control sequence.
\Ginclude@graphics ...\Ginput@path \set@curr@file 
                                                  {#1}\edef \uq@curr@file {\...
l.348 \includegraphics{wnominate-four}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.348 \includegraphics{wnominate-four}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.348 \includegraphics{wnominate-four}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.348 \includegraphics{wnominate-four}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.348 \includegraphics{wnominate-four}
                                      
! LaTeX Error: File `wnominate-four' not found.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Undefined control sequence.
\Ginclude@graphics ...\Ginput@path \set@curr@file 
                                                  {#1}\edef \uq@curr@file {\...
l.395 \includegraphics{wnominate-five}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.395 \includegraphics{wnominate-five}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.395 \includegraphics{wnominate-five}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.395 \includegraphics{wnominate-five}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.395 \includegraphics{wnominate-five}
                                      
! LaTeX Error: File `wnominate-five' not found.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Undefined control sequence.
\Ginclude@graphics ...\Ginput@path \set@curr@file 
                                                  {#1}\edef \uq@curr@file {\...
l.576 \includegraphics{wnominate-UN4}
                                     
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.576 \includegraphics{wnominate-UN4}
                                     
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.576 \includegraphics{wnominate-UN4}
                                     
! Undefined control sequence.
<recently read> \quote@name 
                            
l.576 \includegraphics{wnominate-UN4}
                                     
! Undefined control sequence.
<recently read> \quote@name 
                            
l.576 \includegraphics{wnominate-UN4}
                                     
! LaTeX Error: File `wnominate-UN4' not found.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Undefined control sequence.
\Ginclude@graphics ...\Ginput@path \set@curr@file 
                                                  {#1}\edef \uq@curr@file {\...
l.709 \includegraphics{wnominate-random3}
                                         
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.709 \includegraphics{wnominate-random3}
                                         
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.709 \includegraphics{wnominate-random3}
                                         
! Undefined control sequence.
<recently read> \quote@name 
                            
l.709 \includegraphics{wnominate-random3}
                                         
! Undefined control sequence.
<recently read> \quote@name 
                            
l.709 \includegraphics{wnominate-random3}
                                         
! LaTeX Error: File `wnominate-random3' not found.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
--- failed re-building ‘wnominate.Rnw’

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

Error: Vignette re-building failed.
Execution halted