Error(s) in re-building vignettes:
--- re-building 'basics.Rmd' using rmarkdown
Could not fetch https://res.cloudinary.com/rselenium/image/upload/v1537203294/RProject.png
HttpExceptionRequest Request {
  host                 = "res.cloudinary.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/rselenium/image/upload/v1537203294/RProject.png"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure user error (Network.Socket.gai_strerror not supported: 11002))
Error: processing vignette 'basics.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building 'basics.Rmd'

--- re-building 'docker.Rmd' using rmarkdown
Could not fetch https://res.cloudinary.com/rselenium/image/upload/v1537203296/windowsToolbox.png
HttpExceptionRequest Request {
  host                 = "res.cloudinary.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/rselenium/image/upload/v1537203296/windowsToolbox.png"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure user error (Network.Socket.gai_strerror not supported: 11002))
Error: processing vignette 'docker.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building 'docker.Rmd'

--- re-building 'headless.Rmd' using rmarkdown
Could not fetch https://res.cloudinary.com/johndharrison/image/upload/v1497012298/RSelenium/headless/Screenshot_2014-06-03_14.32.18.png
HttpExceptionRequest Request {
  host                 = "res.cloudinary.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/johndharrison/image/upload/v1497012298/RSelenium/headless/Screenshot_2014-06-03_14.32.18.png"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure user error (Network.Socket.gai_strerror not supported: 11002))
Error: processing vignette 'headless.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building 'headless.Rmd'

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

--- re-building 'saucelabs.Rmd' using rmarkdown
Could not fetch https://res.cloudinary.com/rselenium/image/upload/v1537203294/tmpScreenShot.png
HttpExceptionRequest Request {
  host                 = "res.cloudinary.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/rselenium/image/upload/v1537203294/tmpScreenShot.png"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure user error (Network.Socket.gai_strerror not supported: 11002))
Error: processing vignette 'saucelabs.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building 'saucelabs.Rmd'

--- re-building 'shinytesting.Rmd' using rmarkdown
Could not fetch https://res.cloudinary.com/johndharrison/image/upload/v1497012339/RSelenium/shinytesting/shinytestapp.png
HttpExceptionRequest Request {
  host                 = "res.cloudinary.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/johndharrison/image/upload/v1497012339/RSelenium/shinytesting/shinytestapp.png"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure user error (Network.Socket.gai_strerror not supported: 11002))
Error: processing vignette 'shinytesting.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building 'shinytesting.Rmd'

--- re-building 'webinar.Rmd' using rmarkdown
Could not fetch https://www.youtube.com/embed/ic65SWRWrKA
HttpExceptionRequest Request {
  host                 = "www.youtube.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/embed/ic65SWRWrKA"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure user error (Network.Socket.gai_strerror not supported: 11001))
Error: processing vignette 'webinar.Rmd' failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building 'webinar.Rmd'

SUMMARY: processing the following files failed:
  'basics.Rmd' 'docker.Rmd' 'headless.Rmd' 'saucelabs.Rmd'
  'shinytesting.Rmd' 'webinar.Rmd'

Error: Vignette re-building failed.
Execution halted