Error(s) in re-building vignettes:
  ...
--- re-building ‘NEArender_vignette.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.
Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-2'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-3'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-4'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-5'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-6'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-7'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-8'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-9'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  Failed to tidy R code in chunk 'unnamed-chunk-10'. Reason:
Error in loadNamespace(name) : there is no package called 'formatR'

Quitting from lines 237-239 (NEArender_vignette.Rmd) 
Error: processing vignette 'NEArender_vignette.Rmd' failed with diagnostics:
cannot read from connection
--- failed re-building ‘NEArender_vignette.Rmd’

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

Error: Vignette re-building failed.
Execution halted