Error(s) in re-building vignettes:
  ...
--- re-building ‘advanced_usage.Rmd’ using rmarkdown
--- finished re-building ‘advanced_usage.Rmd’

--- re-building ‘baseline.Rmd’ using rmarkdown
--- finished re-building ‘baseline.Rmd’

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

Quitting from lines 50-53 [unnamed-chunk-3] (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 ‘custom_appearance.Rmd’ using rmarkdown

Quitting from lines 32-34 [unnamed-chunk-3] (custom_appearance.Rmd)
Error: processing vignette 'custom_appearance.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘custom_appearance.Rmd’

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

Quitting from lines 21-23 [unnamed-chunk-1] (example_analysis_coxreg.Rmd)
Error: processing vignette 'example_analysis_coxreg.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘example_analysis_coxreg.Rmd’

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

Quitting from lines 38-40 [unnamed-chunk-3] (exploratory_analysis.Rmd)
Error: processing vignette 'exploratory_analysis.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘exploratory_analysis.Rmd’

--- re-building ‘format_precedence.Rmd’ using rmarkdown
--- finished re-building ‘format_precedence.Rmd’

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

Quitting from lines 39-41 [unnamed-chunk-2] (introduction.Rmd)
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘introduction.Rmd’

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

Quitting from lines 21-23 [unnamed-chunk-2] (introspecting_tables.Rmd)
Error: processing vignette 'introspecting_tables.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘introspecting_tables.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 37-51 [unnamed-chunk-3] (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 ‘split_functions.Rmd’ using rmarkdown

Quitting from lines 165-182 [unnamed-chunk-3] (split_functions.Rmd)
Error: processing vignette 'split_functions.Rmd' failed with diagnostics:
there is no package called 'tibble'
--- failed re-building ‘split_functions.Rmd’

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

Quitting from lines 39-49 [unnamed-chunk-3] (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 36-39 [unnamed-chunk-3] (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 [unnamed-chunk-3] (tabulation_dplyr.Rmd)
Error: processing vignette 'tabulation_dplyr.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘tabulation_dplyr.Rmd’

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

Quitting from lines 16-19 [unnamed-chunk-1] (title_footer.Rmd)
Error: processing vignette 'title_footer.Rmd' failed with diagnostics:
there is no package called 'dplyr'
--- failed re-building ‘title_footer.Rmd’

SUMMARY: processing the following files failed:
  ‘clinical_trials.Rmd’ ‘custom_appearance.Rmd’
  ‘example_analysis_coxreg.Rmd’ ‘exploratory_analysis.Rmd’
  ‘introduction.Rmd’ ‘introspecting_tables.Rmd’ ‘sorting_pruning.Rmd’
  ‘split_functions.Rmd’ ‘subsetting_tables.Rmd’
  ‘tabulation_concepts.Rmd’ ‘tabulation_dplyr.Rmd’ ‘title_footer.Rmd’

Error: Vignette re-building failed.
Execution halted