Error(s) in re-building vignettes:
--- re-building ‘CTD_Lab-Exercise.Rmd’ using rmarkdown
OMP: Warning #96: Cannot form a team with 10 threads, using 2 instead.
OMP: Hint Consider unsetting KMP_DEVICE_THREAD_LIMIT (KMP_ALL_THREADS), KMP_TEAMS_THREAD_LIMIT, and OMP_THREAD_LIMIT (if any are set).
Quitting from lines 414-507 (CTD_Lab-Exercise.Rmd) 
Error: processing vignette 'CTD_Lab-Exercise.Rmd' failed with diagnostics:
'length = 2' in coercion to 'logical(1)'
--- failed re-building ‘CTD_Lab-Exercise.Rmd’

SUMMARY: processing the following file failed:
  ‘CTD_Lab-Exercise.Rmd’

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
--- re-building ‘CTD_Lab-Exercise.Rmd’ using rmarkdown
Quitting from lines 414-507 (CTD_Lab-Exercise.Rmd) 
Error: processing vignette 'CTD_Lab-Exercise.Rmd' failed with diagnostics:
'length = 2' in coercion to 'logical(1)'
--- failed re-building ‘CTD_Lab-Exercise.Rmd’

SUMMARY: processing the following file failed:
  ‘CTD_Lab-Exercise.Rmd’

Error: Vignette re-building failed.
Execution halted