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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 19:26:52.040 R[90353:32227698] XType: Using static font registry.
2024-06-09 19:26:52.684 R[90352:32227697] XType: Using static font registry.
2024-06-09 19:26:53.326 R[90351:32227693] XType: Using static font registry.
2024-06-09 19:27:50.634 R[91111:32229729] XType: Using static font registry.
2024-06-09 19:27:51.315 R[91110:32229727] XType: Using static font registry.
2024-06-09 19:27:51.466 R[91108:32229730] XType: Using static font registry.
2024-06-09 19:27:52.545 R[91109:32229728] XType: Using static font registry.
2024-06-09 19:29:20.565 R[91914:32232109] XType: Using static font registry.
2024-06-09 19:29:22.431 R[91915:32232110] XType: Using static font registry.
2024-06-09 19:29:22.521 R[91912:32232106] XType: Using static font registry.
2024-06-09 19:29:23.082 R[91913:32232108] 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