results <- df %>%
+ pipelearner(lm, yzp ~ .) %>%
+ learn_cvpairs(k = 5) %>%
1: `cross_d()` is deprecated; please use `cross_df()` instead.
2: `cross_d()` is deprecated; please use `cross_df()` instead.
Short Answer: Ignore it.
Long Answer: The author of the pipelearner package has to fix it. Presumably pipelearner internally uses the function
cross_d() somewhere, which has been renamed to
cross_df() in a more recent version of the package purrr. Deprecated means that the old function (name) still works as intended, but will be removed in the future. So the pipelearner author has some time to fix his package.