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

--- re-building ‘litter-manual.Rmd’ using rmarkdown
Parsed with column specification:
cols(
  .default = col_double(),
  region_name = col_character(),
  country_code = col_character(),
  country_name = col_character(),
  location_code = col_character(),
  location_name = col_character(),
  date = col_date(format = ""),
  `Survey: Pellets [998]` = col_character()
)
See spec(...) for full column specifications.
Parsed with column specification:
cols(
  region_name = col_character(),
  country_code = col_character(),
  country_name = col_character(),
  location_code = col_character(),
  location_name = col_character(),
  date = col_date(format = ""),
  type_name = col_character(),
  abundance = col_double()
)
Parsed with column specification:
cols(
  .default = col_double(),
  RefNo = col_character(),
  `Beach name` = col_character(),
  Country = col_character(),
  Region = col_character(),
  `Survey date` = col_character(),
  `Survey: Pellets [998]` = col_character()
)
See spec(...) for full column specifications.
Parsed with column specification:
cols(
  column_name = col_character(),
  description = col_character(),
  unit = col_character()
)
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 'litter-manual.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘litter-manual.Rmd’

SUMMARY: processing the following files failed:
  ‘litter-installation.Rmd’ ‘litter-manual.Rmd’

Error: Vignette re-building failed.
Execution halted