food.web() function - Getting "Error: replacement has length zero"

[hollyannperryman]

Hei! I am continuing the testing out of ReactiveAtlantis functions with the inputs and outputs from the Gulf of Mexico Atlantis model, and I ran into an error with the food.web() function. I was trying to look at the food webs for the shrimp groups (BSH, PSH, and WSH) over time, and I start getting the stated error. At first I thought it had something to do with the column headers in the groups.csv file, so I changed the headers that are getting called in the food.web() function (from what I could see in the r code). It fixed the issue for some of the other fish groups, but I am still getting the error with the shrimp groups. I attached the files I am using in the function in case you wanted to test it yourself.
GulfGroupsForR.csv
GOM_OUTDietCheck.txt