Error(s) in re-building vignettes:
--- re-building ‘ad-trafficking-setup.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 'ad-trafficking-setup.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘ad-trafficking-setup.Rmd’

--- re-building ‘administrative-tasks.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 'administrative-tasks.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘administrative-tasks.Rmd’

--- re-building ‘checking-availability.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 'checking-availability.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘checking-availability.Rmd’

--- re-building ‘manipulating-orders-and-lineitems.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 'manipulating-orders-and-lineitems.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘manipulating-orders-and-lineitems.Rmd’

--- re-building ‘pulling-reports.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 'pulling-reports.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘pulling-reports.Rmd’

SUMMARY: processing the following files failed:
  ‘ad-trafficking-setup.Rmd’ ‘administrative-tasks.Rmd’
  ‘checking-availability.Rmd’ ‘manipulating-orders-and-lineitems.Rmd’
  ‘pulling-reports.Rmd’

Error: Vignette re-building failed.
Execution halted