Error(s) in re-building vignettes:
  ...
--- re-building ‘rgee01.Rmd’ using rmarkdown
Could not fetch https://fonts.gstatic.com
HttpExceptionRequest Request {
  host                 = "fonts.gstatic.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure Network.Socket.getAddrInfo (called with preferred socket type/protocol: AddrInfo {addrFlags = [], addrFamily = AF_UNSPEC, addrSocketType = Stream, addrProtocol = 0, addrAddress = <assumed to be undefined>, addrCanonName = <assumed to be undefined>}, host name: Just "fonts.gstatic.com", service name: Just "443"): does not exist (Temporary failure in name resolution))
Error: processing vignette ‘rgee01.Rmd’ failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building ‘rgee01.Rmd’

--- re-building ‘rgee02.Rmd’ using rmarkdown
Could not fetch https://fonts.gstatic.com
HttpExceptionRequest Request {
  host                 = "fonts.gstatic.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure Network.Socket.getAddrInfo (called with preferred socket type/protocol: AddrInfo {addrFlags = [], addrFamily = AF_UNSPEC, addrSocketType = Stream, addrProtocol = 0, addrAddress = <assumed to be undefined>, addrCanonName = <assumed to be undefined>}, host name: Just "fonts.gstatic.com", service name: Just "443"): does not exist (Temporary failure in name resolution))
Error: processing vignette ‘rgee02.Rmd’ failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building ‘rgee02.Rmd’

--- re-building ‘rgee03.Rmd’ using rmarkdown
Could not fetch https://fonts.gstatic.com
HttpExceptionRequest Request {
  host                 = "fonts.gstatic.com"
  port                 = 443
  secure               = True
  requestHeaders       = []
  path                 = "/"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (ConnectionFailure Network.Socket.getAddrInfo (called with preferred socket type/protocol: AddrInfo {addrFlags = [], addrFamily = AF_UNSPEC, addrSocketType = Stream, addrProtocol = 0, addrAddress = <assumed to be undefined>, addrCanonName = <assumed to be undefined>}, host name: Just "fonts.gstatic.com", service name: Just "443"): does not exist (Temporary failure in name resolution))
Error: processing vignette ‘rgee03.Rmd’ failed with diagnostics:
pandoc document conversion failed with error 61
--- failed re-building ‘rgee03.Rmd’

SUMMARY: processing the following files failed:
  ‘rgee01.Rmd’ ‘rgee02.Rmd’ ‘rgee03.Rmd’

Error: Vignette re-building failed.
Execution halted