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","B223:11250D:1407CF:167A71:68E3F18A"),("Accept-Ranges","bytes"),("Date","Mon, 06 Oct 2025 16:42:50 GMT"),("Via","1.1 varnish"),("X-Served-By","cache-vie6323-VIE"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1759768971.742690,VS0,VE194"),("Vary","Authorization,Accept-Encoding"),("Access-Control-Allow-Origin","*"),("Cross-Origin-Resource-Policy","cross-origin"),("X-Fastly-Request-ID","06ae866eb6e48ac3b8b31ea629760d59e9521cb9"),("Expires","Mon, 06 Oct 2025 16:47:50 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","79BE:F7A83:10D7B3:12E947:68E3F18A"),("Accept-Ranges","bytes"),("Date","Mon, 06 Oct 2025 16:42:51 GMT"),("Via","1.1 varnish"),("X-Served-By","cache-vie6323-VIE"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1759768971.964788,VS0,VE159"),("Vary","Authorization,Accept-Encoding"),("Access-Control-Allow-Origin","*"),("Cross-Origin-Resource-Policy","cross-origin"),("X-Fastly-Request-ID","8ecf0f139c5a1b0193a11c86a3b73eabf461909a"),("Expires","Mon, 06 Oct 2025 16:47:51 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","F95E:3045FC:10F626:13092B:68E3F18A"),("Accept-Ranges","bytes"),("Date","Mon, 06 Oct 2025 16:42:51 GMT"),("Via","1.1 varnish"),("X-Served-By","cache-vie6323-VIE"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1759768971.159203,VS0,VE177"),("Vary","Authorization,Accept-Encoding"),("Access-Control-Allow-Origin","*"),("Cross-Origin-Resource-Policy","cross-origin"),("X-Fastly-Request-ID","51d1ab77c4c0302a5b28d807523a3f092c3169f3"),("Expires","Mon, 06 Oct 2025 16:47:51 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