Error(s) in re-building vignettes:
  ...
--- re-building ‘blog.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
[WARNING] Citeproc: citation sarkar_street_2018 not found
--- finished re-building ‘blog.Rmd’

--- re-building ‘stats19-training-setup.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘stats19-training-setup.Rmd’

--- re-building ‘stats19-training.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
[WARNING] Could not fetch resource 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
    proxySecureMode      = ProxySecureWithConnect
  }
   (StatusCodeException (Response {responseStatus = Status {statusCode = 404, statusMessage = "Not Found"}, responseVersion = HTTP/1.1, responseHeaders = [("Connection","keep-alive"),("Content-Length","14"),("Content-Security-Policy","default-src 'none'; style-src 'unsafe-inline'; sandbox"),("Strict-Transport-Security","max-age=31536000"),("X-Content-Type-Options","nosniff"),("X-Frame-Options","deny"),("X-XSS-Protection","1; mode=block"),("Content-Type","text/plain; charset=utf-8"),("X-GitHub-Request-Id","FA68:12FE9C:BA5026:DB1445:68E2A04C"),("Accept-Ranges","bytes"),("Date","Sun, 05 Oct 2025 16:43:57 GMT"),("Via","1.1 varnish"),("X-Served-By","cache-vie6340-VIE"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1759682638.634209,VS0,VE165"),("Vary","Authorization,Accept-Encoding"),("Access-Control-Allow-Origin","*"),("Cross-Origin-Resource-Policy","cross-origin"),("X-Fastly-Request-ID","68831490b1a6069e40498831e50ad7bde846cbac"),("Expires","Sun, 05 Oct 2025 16:48:57 GMT"),("Source-Age","0")], responseBody = (), responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = 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
    proxySecureMode      = ProxySecureWithConnect
  }
  , responseEarlyHints = []}) "404: Not Found")
[WARNING] Could not fetch resource https://raw.githubusercontent.com/ITSLeeds/TDS/master/courses/2day/images/autocomplete.jpg: HttpExceptionRequest Request {
    host                 = "raw.githubusercontent.com"
    port                 = 443
    secure               = True
    requestHeaders       = []
    path                 = "/ITSLeeds/TDS/master/courses/2day/images/autocomplete.jpg"
    queryString          = ""
    method               = "GET"
    proxy                = Nothing
    rawBody              = False
    redirectCount        = 10
    responseTimeout      = ResponseTimeoutDefault
    requestVersion       = HTTP/1.1
    proxySecureMode      = ProxySecureWithConnect
  }
   (StatusCodeException (Response {responseStatus = Status {statusCode = 404, statusMessage = "Not Found"}, responseVersion = HTTP/1.1, responseHeaders = [("Connection","keep-alive"),("Content-Length","14"),("Content-Security-Policy","default-src 'none'; style-src 'unsafe-inline'; sandbox"),("Strict-Transport-Security","max-age=31536000"),("X-Content-Type-Options","nosniff"),("X-Frame-Options","deny"),("X-XSS-Protection","1; mode=block"),("Content-Type","text/plain; charset=utf-8"),("X-GitHub-Request-Id","68D0:2BAD1E:BBF364:DC962E:68E2A04B"),("Accept-Ranges","bytes"),("Date","Sun, 05 Oct 2025 16:43:57 GMT"),("Via","1.1 varnish"),("X-Served-By","cache-vie6340-VIE"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1759682638.834016,VS0,VE153"),("Vary","Authorization,Accept-Encoding"),("Access-Control-Allow-Origin","*"),("Cross-Origin-Resource-Policy","cross-origin"),("X-Fastly-Request-ID","faa0aa7f14df6155ac0eb8316b58d7509b09419c"),("Expires","Sun, 05 Oct 2025 16:48:57 GMT"),("Source-Age","0")], responseBody = (), responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
    host                 = "raw.githubusercontent.com"
    port                 = 443
    secure               = True
    requestHeaders       = []
    path                 = "/ITSLeeds/TDS/master/courses/2day/images/autocomplete.jpg"
    queryString          = ""
    method               = "GET"
    proxy                = Nothing
    rawBody              = False
    redirectCount        = 10
    responseTimeout      = ResponseTimeoutDefault
    requestVersion       = HTTP/1.1
    proxySecureMode      = ProxySecureWithConnect
  }
  , responseEarlyHints = []}) "404: Not Found")
[WARNING] Could not fetch resource https://raw.githubusercontent.com/ITSLeeds/TDS/master/courses/2day/images/fucntionhelp.jpg: HttpExceptionRequest Request {
    host                 = "raw.githubusercontent.com"
    port                 = 443
    secure               = True
    requestHeaders       = []
    path                 = "/ITSLeeds/TDS/master/courses/2day/images/fucntionhelp.jpg"
    queryString          = ""
    method               = "GET"
    proxy                = Nothing
    rawBody              = False
    redirectCount        = 10
    responseTimeout      = ResponseTimeoutDefault
    requestVersion       = HTTP/1.1
    proxySecureMode      = ProxySecureWithConnect
  }
   (StatusCodeException (Response {responseStatus = Status {statusCode = 404, statusMessage = "Not Found"}, responseVersion = HTTP/1.1, responseHeaders = [("Connection","keep-alive"),("Content-Length","14"),("Content-Security-Policy","default-src 'none'; style-src 'unsafe-inline'; sandbox"),("Strict-Transport-Security","max-age=31536000"),("X-Content-Type-Options","nosniff"),("X-Frame-Options","deny"),("X-XSS-Protection","1; mode=block"),("Content-Type","text/plain; charset=utf-8"),("X-GitHub-Request-Id","184B:28D7D9:BFF5B4:E0C3EB:68E2A04E"),("Accept-Ranges","bytes"),("Date","Sun, 05 Oct 2025 16:43:58 GMT"),("Via","1.1 varnish"),("X-Served-By","cache-vie6340-VIE"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1759682638.042270,VS0,VE147"),("Vary","Authorization,Accept-Encoding"),("Access-Control-Allow-Origin","*"),("Cross-Origin-Resource-Policy","cross-origin"),("X-Fastly-Request-ID","3b304c865a159c7cc2f1884403f17dd3c80cf0a8"),("Expires","Sun, 05 Oct 2025 16:48:58 GMT"),("Source-Age","0")], responseBody = (), responseCookieJar = CJ {expose = []}, responseClose' = ResponseClose, responseOriginalRequest = Request {
    host                 = "raw.githubusercontent.com"
    port                 = 443
    secure               = True
    requestHeaders       = []
    path                 = "/ITSLeeds/TDS/master/courses/2day/images/fucntionhelp.jpg"
    queryString          = ""
    method               = "GET"
    proxy                = Nothing
    rawBody              = False
    redirectCount        = 10
    responseTimeout      = ResponseTimeoutDefault
    requestVersion       = HTTP/1.1
    proxySecureMode      = ProxySecureWithConnect
  }
  , responseEarlyHints = []}) "404: Not Found")
--- finished re-building ‘stats19-training.Rmd’

--- re-building ‘stats19-vehicles.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘stats19-vehicles.Rmd’

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

Quitting from stats19.Rmd:366-374 [nfatalities]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NULL
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'stats19.Rmd' failed with diagnostics:
ℹ In argument: `accident_severity == "Fatal"`.
Caused by error:
! object 'accident_severity' not found
--- failed re-building ‘stats19.Rmd’

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

Error: Vignette re-building failed.
Execution halted