Caret error using GBM, but not without caret

Question

I\'ve been using gbm through caret without problems, but when removing some variables from my dataframe it started to fail. I\'ve tried wit

Answer 1

For now, casting a dataframe from plyr/dplyr to a normal dataframe with as.data.frame() fixes the problem.

train(as.data.frame(issueDataframe), issueResponse, method="gbm")

See this issue.