Error(s) in re-building vignettes:
--- re-building ‘authentication.Rmd’ using rmarkdown
--- finished re-building ‘authentication.Rmd’

--- re-building ‘geocoder.Rmd’ using rmarkdown
List of 10
 $ name      : chr "PopupTable"
 $ version   : chr "0.0.1"
 $ src       :List of 1
  ..$ file: chr ""
 $ meta      : NULL
 $ script    : NULL
 $ stylesheet: chr "popup.css"
 $ head      : NULL
 $ attachment: NULL
 $ package   : NULL
 $ all_files : logi TRUE
 - attr(*, "class")= chr "html_dependency"
Error: processing vignette 'geocoder.Rmd' failed with diagnostics:
path for html_dependency not found: 
--- failed re-building ‘geocoder.Rmd’

--- re-building ‘intermodal.Rmd’ using rmarkdown
List of 10
 $ name      : chr "PopupTable"
 $ version   : chr "0.0.1"
 $ src       :List of 1
  ..$ file: chr ""
 $ meta      : NULL
 $ script    : NULL
 $ stylesheet: chr "popup.css"
 $ head      : NULL
 $ attachment: NULL
 $ package   : NULL
 $ all_files : logi TRUE
 - attr(*, "class")= chr "html_dependency"
Error: processing vignette 'intermodal.Rmd' failed with diagnostics:
path for html_dependency not found: 
--- failed re-building ‘intermodal.Rmd’

--- re-building ‘routing.Rmd’ using rmarkdown
List of 10
 $ name      : chr "PopupTable"
 $ version   : chr "0.0.1"
 $ src       :List of 1
  ..$ file: chr ""
 $ meta      : NULL
 $ script    : NULL
 $ stylesheet: chr "popup.css"
 $ head      : NULL
 $ attachment: NULL
 $ package   : NULL
 $ all_files : logi TRUE
 - attr(*, "class")= chr "html_dependency"
Error: processing vignette 'routing.Rmd' failed with diagnostics:
path for html_dependency not found: 
--- failed re-building ‘routing.Rmd’

--- re-building ‘traffic.Rmd’ using rmarkdown
List of 10
 $ name      : chr "PopupTable"
 $ version   : chr "0.0.1"
 $ src       :List of 1
  ..$ file: chr ""
 $ meta      : NULL
 $ script    : NULL
 $ stylesheet: chr "popup.css"
 $ head      : NULL
 $ attachment: NULL
 $ package   : NULL
 $ all_files : logi TRUE
 - attr(*, "class")= chr "html_dependency"
Error: processing vignette 'traffic.Rmd' failed with diagnostics:
path for html_dependency not found: 
--- failed re-building ‘traffic.Rmd’

--- re-building ‘transit.Rmd’ using rmarkdown
List of 10
 $ name      : chr "PopupTable"
 $ version   : chr "0.0.1"
 $ src       :List of 1
  ..$ file: chr ""
 $ meta      : NULL
 $ script    : NULL
 $ stylesheet: chr "popup.css"
 $ head      : NULL
 $ attachment: NULL
 $ package   : NULL
 $ all_files : logi TRUE
 - attr(*, "class")= chr "html_dependency"
Error: processing vignette 'transit.Rmd' failed with diagnostics:
path for html_dependency not found: 
--- failed re-building ‘transit.Rmd’

--- re-building ‘weather.Rmd’ using rmarkdown
List of 10
 $ name      : chr "PopupTable"
 $ version   : chr "0.0.1"
 $ src       :List of 1
  ..$ file: chr ""
 $ meta      : NULL
 $ script    : NULL
 $ stylesheet: chr "popup.css"
 $ head      : NULL
 $ attachment: NULL
 $ package   : NULL
 $ all_files : logi TRUE
 - attr(*, "class")= chr "html_dependency"
Error: processing vignette 'weather.Rmd' failed with diagnostics:
path for html_dependency not found: 
--- failed re-building ‘weather.Rmd’

SUMMARY: processing the following files failed:
  ‘geocoder.Rmd’ ‘intermodal.Rmd’ ‘routing.Rmd’ ‘traffic.Rmd’
  ‘transit.Rmd’ ‘weather.Rmd’

Error: Vignette re-building failed.
Execution halted