Error(s) in re-building vignettes:
--- re-building ‘BinomialMixtures.Rmd’ using rmarkdown
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 'BinomialMixtures.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘BinomialMixtures.Rmd’

--- re-building ‘FactorAnalysis.Rmd’ using rmarkdown
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 'FactorAnalysis.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘FactorAnalysis.Rmd’

--- re-building ‘GaussianMixtures.Rmd’ using rmarkdown
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 'GaussianMixtures.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘GaussianMixtures.Rmd’

--- re-building ‘LatentClassAnalysis.Rmd’ using rmarkdown
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 'LatentClassAnalysis.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘LatentClassAnalysis.Rmd’

--- re-building ‘ReducedRankRegression.Rmd’ using rmarkdown
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 'ReducedRankRegression.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘ReducedRankRegression.Rmd’

--- re-building ‘sBIC.Rmd’ using rmarkdown
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 'sBIC.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘sBIC.Rmd’

SUMMARY: processing the following files failed:
  ‘BinomialMixtures.Rmd’ ‘FactorAnalysis.Rmd’ ‘GaussianMixtures.Rmd’
  ‘LatentClassAnalysis.Rmd’ ‘ReducedRankRegression.Rmd’ ‘sBIC.Rmd’

Error: Vignette re-building failed.
Execution halted