Error(s) in re-building vignettes:
--- re-building 'data_automation.Rmd' using rmarkdown
Warning in environment() :
  closing unused connection 14 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_sfnmlb_lanmlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 13 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_milmlb_sdnmlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 12 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_anamlb_oakmlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 11 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_colmlb_arimlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 10 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_houmlb_texmlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 9 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_phimlb_atlmlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 8 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_chnmlb_miamlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 7 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_bosmlb_tbamlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 6 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_nyamlb_tormlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 5 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_wasmlb_cinmlb_1/inning/inning_all.xml)
Warning in environment() :
  closing unused connection 4 (http://gd2.mlb.com/components/game/mlb/year_2018/month_03/day_30/gid_2018_03_30_pitmlb_detmlb_1/inning/inning_all.xml)
Quitting from lines 23-32 (data_automation.Rmd) 
Error: processing vignette 'data_automation.Rmd' failed with diagnostics:
zero-length inputs cannot be mixed with those of non-zero length
--- failed re-building 'data_automation.Rmd'

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

--- re-building 'pitch_plotting.Rmd' using rmarkdown
Quitting from lines 22-32 (pitch_plotting.Rmd) 
Error: processing vignette 'pitch_plotting.Rmd' failed with diagnostics:
zero-length inputs cannot be mixed with those of non-zero length
--- failed re-building 'pitch_plotting.Rmd'

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

SUMMARY: processing the following files failed:
  'data_automation.Rmd' 'pitch_plotting.Rmd'

Error: Vignette re-building failed.
Execution halted