Error(s) in re-building vignettes:
--- re-building ‘Bird_Parasite_CRF.Rmd’ using rmarkdown
Loading required package: glmnet
Loading required package: Matrix
Loaded glmnet 3.0-2

Welcome to MRFcov. If you use the package, please cite as: Clark, NJ, Wells, K and Lindberg, O. 2018. Unravelling changing interspecific interactions across environmental gradients using Markov random fields. Ecology doi: 10.1002/ecy.2221 
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 'Bird_Parasite_CRF.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘Bird_Parasite_CRF.Rmd’

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

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

SUMMARY: processing the following files failed:
  ‘Bird_Parasite_CRF.Rmd’ ‘CRF_data_prep.Rmd’
  ‘Gaussian_Poisson_CRFs.Rmd’

Error: Vignette re-building failed.
Execution halted