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

--- re-building ‘b1_Conventions.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl
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 'b1_Conventions.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b1_Conventions.Rmd’

--- re-building ‘b2_PreProcessing.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl
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 'b2_PreProcessing.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b2_PreProcessing.Rmd’

--- re-building ‘b3_Modelling.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl
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 'b3_Modelling.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b3_Modelling.Rmd’

--- re-building ‘b4_VisualizeOutputs.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl
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 'b4_VisualizeOutputs.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b4_VisualizeOutputs.Rmd’

--- re-building ‘b5_Predictability.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl
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 'b5_Predictability.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b5_Predictability.Rmd’

--- re-building ‘b6_Sensitivity.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl

Attaching package: 'signal'

The following objects are masked from 'package:stats':

    filter, poly

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 'b6_Sensitivity.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b6_Sensitivity.Rmd’

--- re-building ‘b7_Retro-modelling.Rmd’ using rmarkdown
Loading required package: deSolve
Loading required package: rgl
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 'b7_Retro-modelling.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b7_Retro-modelling.Rmd’

SUMMARY: processing the following files failed:
  ‘a_GeneralIntro.Rmd’ ‘b1_Conventions.Rmd’ ‘b2_PreProcessing.Rmd’
  ‘b3_Modelling.Rmd’ ‘b4_VisualizeOutputs.Rmd’ ‘b5_Predictability.Rmd’
  ‘b6_Sensitivity.Rmd’ ‘b7_Retro-modelling.Rmd’

Error: Vignette re-building failed.
Execution halted