Trying to load league rosters and keep getting the same error

[samhoppen]

I've been trying to upload the rosters but keep running into the same issues. Below is the code I've been using:

library(tidyverse)
library(dplyr)
library(nflscrapR)
team_pbp_data <- purrr::map_dfr(c(2009:2019),
                                function(x) {
                                  readr::read_csv(paste0("https://raw.githubusercontent.com/ryurko/nflscrapR-data/master/play_by_play_data/regular_season/reg_pbp_",
                                                         x, ".csv")) %>%
                                    dplyr::mutate(pbp_season = x) %>%
                                    dplyr::select(posteam, pbp_season) %>%
                                    dplyr::filter(!is.na(posteam)) %>%
                                    dplyr::mutate(posteam = ifelse(pbp_season == 2016 & posteam == "JAC",
                                                                   "JAX", posteam)) %>%
                                    dplyr::distinct()
                                })

teams_2009 <- team_pbp_data %>%
  dplyr::filter(pbp_season == 2009) %>%
  dplyr::pull(posteam)

reg_season_09_rosters <- get_season_rosters(2009,
                                            teams = teams_2009,
                                            type = "reg")

I skipped the preseason as I'm only looking at the regular season data, but I've run this before without experiencing any issues. Here's the error I keep getting:

> reg_season_09_rosters <- get_season_rosters(2009,
+                                             teams = teams_2009,
+                                             type = "reg")
Extracting QUARTERBACK
Error in UseMethod("xml_find_all") : 
  no applicable method for 'xml_find_all' applied to an object of class "character"

Any thoughts on how to resolve? Not sure if there's a package I'm missing or other code that's blocking this from working, but I've started new projects with just this code and still run into the issue. Let me know. Thanks!

[CarlosML27]

Hi there!

I had the same issue and started to investigate what could be the problem.

I'm a noob in R, but I believe that error is raised while getting the birthdates of players. I think there could be a problem while retrieving the nodes with rvest.

If you see the player_ids, you'll see you have the exact same problem but due to not using that data again, the error is not raised:

@ryurko @dutta hope you can get something there!

[CarlosML27]

Update:

It's not the retrieving but an NFL problem with some missing GSIS IDs out there. Here's an example with Jalan McClendon (missing) and Cam Newton (how it should be).

I guess the solution is skipping those players or giving them a default value...