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

--- re-building 'real-data.Rmd' using rmarkdown
trying URL 'https://data.canadensys.net/ipt/archive.do?r=vascan&v=37.12'

Quitting from lines 40-59 [download-unzip] (real-data.Rmd)
Error: processing vignette 'real-data.Rmd' failed with diagnostics:
cannot open URL 'https://data.canadensys.net/ipt/archive.do?r=vascan&v=37.12'
--- failed re-building 'real-data.Rmd'

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

--- re-building 'what-is-dwc.Rmd' using rmarkdown
--- finished re-building 'what-is-dwc.Rmd'

SUMMARY: processing the following file failed:
  'real-data.Rmd'

Error: Vignette re-building failed.
Execution halted