Error(s) in re-building vignettes:
--- re-building ‘baseline.Rmd’ using rmarkdown
Quitting from lines 39-45 (baseline.Rmd) 
Error: processing vignette 'baseline.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘baseline.Rmd’

--- re-building ‘clinical_trials.Rmd’ using rmarkdown

Attaching package: 'dplyr'

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

    filter, lag

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

    intersect, setdiff, setequal, union

Quitting from lines 53-64 (clinical_trials.Rmd) 
Error: processing vignette 'clinical_trials.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘clinical_trials.Rmd’

--- re-building ‘introduction.Rmd’ using rmarkdown
Quitting from lines 78-88 (introduction.Rmd) 
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘introduction.Rmd’

--- re-building ‘manual_table_construction.Rmd’ using rmarkdown
Quitting from lines 66-67 (manual_table_construction.Rmd) 
Error: processing vignette 'manual_table_construction.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘manual_table_construction.Rmd’

--- re-building ‘sorting_pruning.Rmd’ using rmarkdown
Quitting from lines 40-50 (sorting_pruning.Rmd) 
Error: processing vignette 'sorting_pruning.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘sorting_pruning.Rmd’

--- re-building ‘subsetting_tables.Rmd’ using rmarkdown
Quitting from lines 36-46 (subsetting_tables.Rmd) 
Error: processing vignette 'subsetting_tables.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘subsetting_tables.Rmd’

--- re-building ‘tabulation_concepts.Rmd’ using rmarkdown
Quitting from lines 85-95 (tabulation_concepts.Rmd) 
Error: processing vignette 'tabulation_concepts.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘tabulation_concepts.Rmd’

--- re-building ‘tabulation_dplyr.Rmd’ using rmarkdown
Quitting from lines 45-69 (tabulation_dplyr.Rmd) 
Error: processing vignette 'tabulation_dplyr.Rmd' failed with diagnostics:
unused argument (linesep = "—")
--- failed re-building ‘tabulation_dplyr.Rmd’

SUMMARY: processing the following files failed:
  ‘baseline.Rmd’ ‘clinical_trials.Rmd’ ‘introduction.Rmd’
  ‘manual_table_construction.Rmd’ ‘sorting_pruning.Rmd’
  ‘subsetting_tables.Rmd’ ‘tabulation_concepts.Rmd’
  ‘tabulation_dplyr.Rmd’

Error: Vignette re-building failed.
Execution halted