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

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

--- re-building ‘memory-and-parallelization.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 'memory-and-parallelization.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘memory-and-parallelization.Rmd’

--- re-building ‘metadata-and-data-units.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 'metadata-and-data-units.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘metadata-and-data-units.Rmd’

--- re-building ‘sapfluxnetr-quick-guide.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 'sapfluxnetr-quick-guide.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘sapfluxnetr-quick-guide.Rmd’

--- re-building ‘sfn-data-classes.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 'sfn-data-classes.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘sfn-data-classes.Rmd’

SUMMARY: processing the following files failed:
  ‘custom-aggregation.Rmd’ ‘data-flags.Rmd’
  ‘memory-and-parallelization.Rmd’ ‘metadata-and-data-units.Rmd’
  ‘sapfluxnetr-quick-guide.Rmd’ ‘sfn-data-classes.Rmd’

Error: Vignette re-building failed.
Execution halted