Error(s) in re-building vignettes:
--- re-building ‘TheMakingOf.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
superb::FYI: The average correlation per group is  0.8366
superb::FYI: The ICC1 per group are  0.4913 0.2039
geom_path: Each group consists of only one observation. Do you need to adjust
the group aesthetic?
geom_path: Each group consists of only one observation. Do you need to adjust
the group aesthetic?
--- finished re-building ‘TheMakingOf.Rmd’

--- re-building ‘Vignette1.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette1.Rmd’

--- re-building ‘Vignette2.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette2.Rmd’

--- re-building ‘Vignette3.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette3.Rmd’

--- re-building ‘Vignette4.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette4.Rmd’

--- re-building ‘Vignette5.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Quitting from lines 437-439 (Vignette5.Rmd) 
Error: processing vignette 'Vignette5.Rmd' failed with diagnostics:
there is no package called 'emojifont'
--- failed re-building ‘Vignette5.Rmd’

--- re-building ‘Vignette6.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette6.Rmd’

--- re-building ‘Vignette7.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette7.Rmd’

--- re-building ‘Vignette8.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
--- finished re-building ‘Vignette8.Rmd’

SUMMARY: processing the following file failed:
  ‘Vignette5.Rmd’

Error: Vignette re-building failed.
Execution halted