Error(s) in re-building vignettes:
--- re-building ‘precipitation_stochastic_generation_v6.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
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NOTE: The default cutoff when expanding a 2-digit year
to a 4-digit year will change from 30 to 69 by Aug 2020
(as for Date and POSIXct in base R.)
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Attaching package: 'zoo'

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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.
Warning in normalizePath(f2) :
  path[1]="webshot16946470b5c24.png": No such file or directory
Warning in file(con, "rb") :
  cannot open file 'webshot16946470b5c24.png': No such file or directory
Quitting from lines 50-63 (precipitation_stochastic_generation_v6.Rmd) 
Error: processing vignette 'precipitation_stochastic_generation_v6.Rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘precipitation_stochastic_generation_v6.Rmd’

SUMMARY: processing the following file failed:
  ‘precipitation_stochastic_generation_v6.Rmd’

Error: Vignette re-building failed.
Execution halted