Error(s) in re-building vignettes:
--- re-building ‘vars.Rnw’ using Sweave
Loading required package: MASS
Loading required package: strucchange
Loading required package: zoo

Attaching package: ‘zoo’

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

    as.Date, as.Date.numeric

Loading required package: sandwich
Loading required package: urca
Loading required package: lmtest
Error: processing vignette 'vars.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'vars.tex' failed.
LaTeX errors:
! Undefined control sequence.
\Ginclude@graphics ...\Ginput@path \set@curr@file 
                                                  {#1}\edef \uq@curr@file {\...
l.1113 \includegraphics{Figures/fig-1}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.1113 \includegraphics{Figures/fig-1}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.1113 \includegraphics{Figures/fig-1}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1113 \includegraphics{Figures/fig-1}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1113 \includegraphics{Figures/fig-1}
                                      
! LaTeX Error: File `Figures/fig-1' 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.1415 \includegraphics{Figures/fig-2}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.1415 \includegraphics{Figures/fig-2}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.1415 \includegraphics{Figures/fig-2}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1415 \includegraphics{Figures/fig-2}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1415 \includegraphics{Figures/fig-2}
                                      
! LaTeX Error: File `Figures/fig-2' 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.1475 \includegraphics{Figures/fig-3}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.1475 \includegraphics{Figures/fig-3}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.1475 \includegraphics{Figures/fig-3}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1475 \includegraphics{Figures/fig-3}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1475 \includegraphics{Figures/fig-3}
                                      
! LaTeX Error: File `Figures/fig-3' 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.1483 \includegraphics{Figures/fig-4}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.1483 \includegraphics{Figures/fig-4}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.1483 \includegraphics{Figures/fig-4}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1483 \includegraphics{Figures/fig-4}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1483 \includegraphics{Figures/fig-4}
                                      
! LaTeX Error: File `Figures/fig-4' 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.1894 \includegraphics{Figures/fig-5}
                                      
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.1894 \includegraphics{Figures/fig-5}
                                      
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.1894 \includegraphics{Figures/fig-5}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1894 \includegraphics{Figures/fig-5}
                                      
! Undefined control sequence.
<recently read> \quote@name 
                            
l.1894 \includegraphics{Figures/fig-5}
                                      
! LaTeX Error: File `Figures/fig-5' not found.

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

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

Error: Vignette re-building failed.
Execution halted