Error(s) in re-building vignettes:
--- re-building ‘clinDataReview-dataPreprocessing.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Data annotated with variable(s): ETHNIC ('ETHNIC'), ARM ('ARM') from the 'custom' dataset based on the variable(s):	USUBJID ('USUBJID').
354 records with ARM ('ARM') %in% 'Placebo' are filtered in data.
--- finished re-building ‘clinDataReview-dataPreprocessing.Rmd’

--- re-building ‘clinDataReview-dataVisualization.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Loading required package: ggplot2

Attaching package: 'plotly'

The following object is masked from 'package:ggplot2':

    last_plot

The following object is masked from 'package:stats':

    filter

The following object is masked from 'package:graphics':

    layout

Warning: Ignoring unknown aesthetics: text
PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
Quitting from lines 154-187 (clinDataReview-dataVisualization.Rmd) 
Error: processing vignette 'clinDataReview-dataVisualization.Rmd' failed with diagnostics:
invalid 'path' argument
--- failed re-building ‘clinDataReview-dataVisualization.Rmd’

--- re-building ‘clinDataReview-reporting.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 ‘clinDataReview-reporting.Rmd’

SUMMARY: processing the following file failed:
  ‘clinDataReview-dataVisualization.Rmd’

Error: Vignette re-building failed.
Execution halted