Error(s) in re-building vignettes:
--- re-building 'baseline.Rmd' using rmarkdown
--- finished re-building 'baseline.Rmd'

--- re-building 'clinical_trials.Rmd' using rmarkdown
Quitting from lines 41-44 (clinical_trials.Rmd) 
Error: processing vignette 'clinical_trials.Rmd' failed with diagnostics:
there is no package called 'tibble'
--- failed re-building 'clinical_trials.Rmd'

--- re-building 'introduction.Rmd' using rmarkdown
Quitting from lines 44-46 (introduction.Rmd) 
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building 'introduction.Rmd'

--- re-building 'manual_table_construction.Rmd' using rmarkdown
--- finished re-building 'manual_table_construction.Rmd'

--- re-building 'sorting_pruning.Rmd' using rmarkdown
Quitting from lines 31-33 (sorting_pruning.Rmd) 
Error: processing vignette 'sorting_pruning.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- 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:
there is no package called 'dplyr'
--- failed re-building 'subsetting_tables.Rmd'

--- re-building 'tabulation_concepts.Rmd' using rmarkdown
Quitting from lines 35-38 (tabulation_concepts.Rmd) 
Error: processing vignette 'tabulation_concepts.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building 'tabulation_concepts.Rmd'

--- re-building 'tabulation_dplyr.Rmd' using rmarkdown
Quitting from lines 38-40 (tabulation_dplyr.Rmd) 
Error: processing vignette 'tabulation_dplyr.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building 'tabulation_dplyr.Rmd'

SUMMARY: processing the following files failed:
  'clinical_trials.Rmd' 'introduction.Rmd' 'sorting_pruning.Rmd'
  'subsetting_tables.Rmd' 'tabulation_concepts.Rmd'
  'tabulation_dplyr.Rmd'

Error: Vignette re-building failed.
Execution halted