Error(s) in re-building vignettes:
  ...
--- re-building ‘anovaES.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'anovaES.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘anovaES.Rmd’

--- re-building ‘bayesian_models.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'bayesian_models.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘bayesian_models.Rmd’

--- re-building ‘convert.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'convert.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘convert.Rmd’

--- re-building ‘from_test_statistics.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'from_test_statistics.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘from_test_statistics.Rmd’

--- re-building ‘interpret.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'interpret.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘interpret.Rmd’

--- re-building ‘simple_htests.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'simple_htests.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘simple_htests.Rmd’

--- re-building ‘standardize_data.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'standardize_data.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘standardize_data.Rmd’

--- re-building ‘standardize_parameters.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Error: processing vignette 'standardize_parameters.Rmd' failed with diagnostics:
there is no package called 'stringr'
--- failed re-building ‘standardize_parameters.Rmd’

SUMMARY: processing the following files failed:
  ‘anovaES.Rmd’ ‘bayesian_models.Rmd’ ‘convert.Rmd’
  ‘from_test_statistics.Rmd’ ‘interpret.Rmd’ ‘simple_htests.Rmd’
  ‘standardize_data.Rmd’ ‘standardize_parameters.Rmd’

Error: Vignette re-building failed.
Execution halted