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### Running command:
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###   /Library/Frameworks/R.framework/Resources/bin/R CMD build --keep-empty-dirs --no-resave-data chromstaR
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* checking for file ‘chromstaR/DESCRIPTION’ ... OK
* preparing ‘chromstaR’:
* checking DESCRIPTION meta-information ... OK
* cleaning src
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘chromstaR.Rnw’ using knitr
2024-06-09 21:32:36.769 R[63490:37593340] XType: Using static font registry.
2024-06-09 21:32:36.792 R[63491:37593343] XType: Using static font registry.
2024-06-09 21:32:37.027 R[63493:37593342] XType: Using static font registry.
2024-06-09 21:33:18.732 R[63922:37594601] XType: Using static font registry.
2024-06-09 21:33:18.850 R[63925:37594602] XType: Using static font registry.
2024-06-09 21:33:19.546 R[63924:37594604] XType: Using static font registry.
2024-06-09 21:33:20.211 R[63923:37594603] XType: Using static font registry.
2024-06-09 21:34:29.679 R[64672:37596849] XType: Using static font registry.
2024-06-09 21:34:29.682 R[64674:37596847] XType: Using static font registry.
2024-06-09 21:34:29.682 R[64673:37596846] XType: Using static font registry.
2024-06-09 21:34:29.711 R[64675:37596848] XType: Using static font registry.
Error: processing vignette 'chromstaR.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'chromstaR.tex' failed.
LaTeX errors:
! Package xcolor Error: Undefined color `fgcolor'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Emergency stop.
 ...                                              
                                                  
l.70 ...}{rgb}{0.941, 0.941, 0.941}\color{fgcolor}
                                                  \begin{kframe}
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘chromstaR.Rnw’

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

Error: Vignette re-building failed.
Execution halted