Error(s) in re-building vignettes:
--- re-building 'Generalized-RF.Rmd' using rmarkdown
--- finished re-building 'Generalized-RF.Rmd'

--- re-building 'Robinson-Foulds.Rmd' using rmarkdown
--- finished re-building 'Robinson-Foulds.Rmd'

--- re-building 'Using-TreeDist.Rmd' using rmarkdown
CiteprocXMLError: 1:1 (0)-1:15 (14): Found content after root element: EventContent (ContentText "404: Not Found")
Error: processing vignette 'Using-TreeDist.Rmd' failed with diagnostics:
pandoc document conversion failed with error 4
--- failed re-building 'Using-TreeDist.Rmd'

--- re-building 'compare-treesets.Rmd' using rmarkdown
CiteprocXMLError: 1:1 (0)-1:15 (14): Found content after root element: EventContent (ContentText "404: Not Found")
Error: processing vignette 'compare-treesets.Rmd' failed with diagnostics:
pandoc document conversion failed with error 4
--- failed re-building 'compare-treesets.Rmd'

--- re-building 'different-leaves.Rmd' using rmarkdown
--- finished re-building 'different-leaves.Rmd'

--- re-building 'information.Rmd' using rmarkdown
--- finished re-building 'information.Rmd'

--- re-building 'landscapes.Rmd' using rmarkdown
CiteprocXMLError: 1:1 (0)-1:15 (14): Found content after root element: EventContent (ContentText "404: Not Found")
Error: processing vignette 'landscapes.Rmd' failed with diagnostics:
pandoc document conversion failed with error 4
--- failed re-building 'landscapes.Rmd'

--- re-building 'treespace.Rmd' using rmarkdown
CiteprocXMLError: 1:1 (0)-1:15 (14): Found content after root element: EventContent (ContentText "404: Not Found")
Error: processing vignette 'treespace.Rmd' failed with diagnostics:
pandoc document conversion failed with error 4
--- failed re-building 'treespace.Rmd'

--- re-building 'using-distances.Rmd' using rmarkdown
--- finished re-building 'using-distances.Rmd'

SUMMARY: processing the following files failed:
  'Using-TreeDist.Rmd' 'compare-treesets.Rmd' 'landscapes.Rmd'
  'treespace.Rmd'

Error: Vignette re-building failed.
Execution halted