Error(s) in re-building vignettes:
--- re-building ‘blog.Rmd’ using rmarkdown
[WARNING] Citeproc: citation sarkar_street_2018 not found
--- finished re-building ‘blog.Rmd’

--- re-building ‘stats19-training-setup.Rmd’ using rmarkdown
--- finished re-building ‘stats19-training-setup.Rmd’

--- re-building ‘stats19-training.Rmd’ using rmarkdown
2024-09-09 10:45:58.888 R[76635:2033324795] XType: Using static font registry.
Could not fetch https://raw.githubusercontent.com/ITSLeeds/TDS/master/courses/2day/images/rstudio-ui.png
HttpExceptionRequest Request {
  host                 = "raw.githubusercontent.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/ITSLeeds/TDS/master/courses/2day/images/rstudio-ui.png"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (InternalException (HandshakeFailed (Error_Protocol ("certificate has unknown CA",True,UnknownCa))))
Error: processing vignette 'stats19-training.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building ‘stats19-training.Rmd’

--- re-building ‘stats19-vehicles.Rmd’ using rmarkdown
--- finished re-building ‘stats19-vehicles.Rmd’

--- re-building ‘stats19.Rmd’ using rmarkdown
trying URL 'https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2022.csv'
Content type 'text/csv' length 17325764 bytes (16.5 MB)
==================================================
downloaded 16.5 MB

trying URL 'https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-2022.csv'
Content type 'text/csv' length 19667670 bytes (18.8 MB)
==================================================
downloaded 18.8 MB

trying URL 'https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2022.csv'
Content type 'text/csv' length 9549207 bytes (9.1 MB)
==================================================
downloaded 9.1 MB

2024-09-09 10:46:37.238 R[79749:2033331002] XType: Using static font registry.
[WARNING] Citeproc: citation sarkar_street_2018 not found
--- finished re-building ‘stats19.Rmd’

SUMMARY: processing the following file failed:
  ‘stats19-training.Rmd’

Error: Vignette re-building failed.
Execution halted