Error(s) in re-building vignettes:
--- re-building ‘ggplotify.Rmd’ using rmarkdown

********************************************************
Note: As of version 1.0.0, cowplot does not change the
  default ggplot2 theme anymore. To recover the previous
  behavior, execute:
  theme_set(theme_cowplot())
********************************************************


Attaching package: 'ggimage'

The following object is masked from 'package:cowplot':

    theme_nothing

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dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'ggplotify.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘ggplotify.Rmd’

SUMMARY: processing the following file failed:
  ‘ggplotify.Rmd’

Error: Vignette re-building failed.
Execution halted