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### Running command:
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###   chmod a+r miloR -R && E:\biocbuild\bbs-3.21-bioc\R\bin\R.exe CMD build --keep-empty-dirs --no-resave-data miloR
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* checking for file 'miloR/DESCRIPTION' ... OK
* preparing 'miloR':
* checking DESCRIPTION meta-information ... OK
* cleaning src
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building 'milo_contrasts.Rmd' using rmarkdown
--- finished re-building 'milo_contrasts.Rmd'

--- re-building 'milo_demo.Rmd' using rmarkdown
--- finished re-building 'milo_demo.Rmd'

--- re-building 'milo_gastrulation.Rmd' using rmarkdown
Warning: ggrepel: 8 unlabeled data points (too many overlaps). Consider increasing max.overlaps

Quitting from lines 265-272 [unnamed-chunk-22] (milo_gastrulation.Rmd)
Error: processing vignette 'milo_gastrulation.Rmd' failed with diagnostics:
contrasts can be applied only to factors with 2 or more levels
--- failed re-building 'milo_gastrulation.Rmd'

--- re-building 'milo_glmm.Rmd' using rmarkdown
Warning: call dbDisconnect() when finished working with a connection
--- finished re-building 'milo_glmm.Rmd'

SUMMARY: processing the following file failed:
  'milo_gastrulation.Rmd'

Error: Vignette re-building failed.
Execution halted