Error(s) in re-building vignettes:
  ...
--- re-building ‘rbioapi.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Retrieving taxonomic nodes that their scientific name field contain adenovirus (page 1).
Iterating from page 1 to page 3.
Retrieving taxonomic nodes that their scientific name field contain adenovirus (page 1).
Retrieving taxonomic nodes that their scientific name field contain adenovirus (page 2).
Retrieving taxonomic nodes that their scientific name field contain adenovirus (page 3).
--- finished re-building ‘rbioapi.Rmd’

--- re-building ‘rbioapi_mieaa.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 91-98 (rbioapi_mieaa.Rmd) 
Error: processing vignette 'rbioapi_mieaa.Rmd' failed with diagnostics:
there is no package called 'webshot'
--- failed re-building ‘rbioapi_mieaa.Rmd’

--- re-building ‘rbioapi_panther.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 86-92 (rbioapi_panther.Rmd) 
Error: processing vignette 'rbioapi_panther.Rmd' failed with diagnostics:
there is no package called 'webshot'
--- failed re-building ‘rbioapi_panther.Rmd’

--- re-building ‘rbioapi_reactome.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Retrieving Reactome Analysis Results of your provided Identifiers.
Quitting from lines 76-83 (rbioapi_reactome.Rmd) 
Error: processing vignette 'rbioapi_reactome.Rmd' failed with diagnostics:
there is no package called 'webshot'
--- failed re-building ‘rbioapi_reactome.Rmd’

--- re-building ‘rbioapi_string.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Mapping 14 Input Identifiers to STRING Identifiers.
Retrieving STRING Network interaction of 14 Input Identifiers.
Quitting from lines 85-91 (rbioapi_string.Rmd) 
Error: processing vignette 'rbioapi_string.Rmd' failed with diagnostics:
there is no package called 'webshot'
--- failed re-building ‘rbioapi_string.Rmd’

--- re-building ‘rbioapi_uniprot.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) not available. Falling back to R Markdown v1.
Retrieving UniProt Entity with accession number P29965.
Searching UniProt and retrieving proteins that match your provided inputs.
Searching UniProt and retrieving proteins that match your provided inputs.
Searching UniProt and retrieving proteins that match your provided inputs.
Searching UniProt and retrieving proteins that match your provided inputs.
Searching UniProt and retrieving proteins that match your provided inputs.
--- finished re-building ‘rbioapi_uniprot.Rmd’

SUMMARY: processing the following files failed:
  ‘rbioapi_mieaa.Rmd’ ‘rbioapi_panther.Rmd’ ‘rbioapi_reactome.Rmd’
  ‘rbioapi_string.Rmd’

Error: Vignette re-building failed.
Execution halted