Running examples in ‘mlbgameday-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: get_payload
> ### Title: Get Gameday data from MLBAM.
> ### Aliases: get_payload
> 
> ### ** Examples
> 
> 
> ## Not run: 
> ##D # Make a request for a single day.
> ##D df <- get_payload(start = "2016-06-01", end = "2016-06-01")
> ##D 
> ##D 
> ##D # Run larger requests in parallel.
> ##D library(doParallel)
> ##D library(foreach)
> ##D 
> ##D no_cores <- detectCores() - 2
> ##D cl <- makeCluster(no_cores) 
> ##D registerDoParallel(cl)
> ##D 
> ##D df <- get_payload(start = "2016-01-01", end = "2017-01-01")
> ##D 
> ##D stopImplicitCluster()
> ##D rm(cl)
> ##D 
> ## End(Not run)
> 
> # Supply your own custom vector of game ids.
> 
> mygids <- search_gids(team = "indians", start = "2016-05-01", end = "2016-05-01")
> 
> df <- get_payload(game_ids = mygids)
Gathering Gameday data, please be patient...
Warning: executing %dopar% sequentially: no parallel backend registered
Warning in for (d in seq_along(children)) { :
  closing unused connection 3 (http://gd2.mlb.com/components/game/mlb/year_2016/month_05/day_01/gid_2016_05_01_clemlb_phimlb_1/inning/inning_all.xml)
Error: `tfs_zulu` = NULL must be a column name or position, not NULL
Backtrace:
     █
  1. └─mlbgameday::get_payload(game_ids = mygids)
  2.   └─mlbgameday::payload.gd_inning_all(urlz)
  3.     └─`%>%`(...)
  4.       ├─base::withVisible(eval(quote(`_fseq`(`_lhs`)), env, env))
  5.       └─base::eval(quote(`_fseq`(`_lhs`)), env, env)
  6.         └─base::eval(quote(`_fseq`(`_lhs`)), env, env)
  7.           └─mlbgameday:::`_fseq`(`_lhs`)
  8.             └─magrittr::freduce(value, `_function_list`)
  9.               ├─base::withVisible(function_list[[k]](value))
 10.               └─function_list[[k]](value)
 11.                 ├─dplyr::rename(., tfs_zulu = start_tfs_zulu)
 12.                 └─dplyr:::rename.data.frame(., tfs_zulu = start_tfs_zulu)
 13.                   └─tidyselect::vars_rename(names(.data), !!!enquos(...))
 14.                     └─tidyselect:::vars_rename_eval(quos, .vars)
 15.                       
Execution halted