Error(s) in re-building vignettes:
--- re-building ‘funwithfunload.Snw’ using Sweave
--- finished re-building ‘funwithfunload.Snw’

--- re-building ‘widals.Snw’ using Sweave
Loading required package: snowfall
Loading required package: snow
snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.

Library widals loaded in cluster.


Stopping cluster

snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.


Stopping cluster

snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.


Stopping cluster

snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.


Stopping cluster

snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.


Stopping cluster

snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.


Stopping cluster

snowfall 1.84-6.1 initialized (using snow 0.4-3): parallel execution on 2 CPUs.

Library widals loaded in cluster.

Library widals loaded in cluster.


Stopping cluster

Error: processing vignette 'widals.Snw' failed with diagnostics:
Running 'texi2dvi' on 'widals.tex' failed.
LaTeX errors:
! Undefined control sequence.
\Ginclude@graphics ...\Ginput@path \set@curr@file 
                                                  {#1}\edef \uq@curr@file {\...
l.487 \includegraphics{widals-016}
                                  
! Undefined control sequence.
\Ginclude@graphics ...e \expandafter {\@curr@file 
                                                  }}\expandafter \filename@p...
l.487 \includegraphics{widals-016}
                                  
! Undefined control sequence.
<recently read> \unquote@name 
                              
l.487 \includegraphics{widals-016}
                                  
! Undefined control sequence.
<recently read> \quote@name 
                            
l.487 \includegraphics{widals-016}
                                  
! Undefined control sequence.
<recently read> \quote@name 
                            
l.487 \includegraphics{widals-016}
                                  
! LaTeX Error: File `widals-016' not found.

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

SUMMARY: processing the following file failed:
  ‘widals.Snw’

Error: Vignette re-building failed.
Execution halted