Fixing a multiple warning “unknown column”

Question

I have a persistent multiple warning of \"unknown column\" for all types of commands (e.g., str(x) to installing updates on packages), and not sure how to debug this or fix

Answer 1

I get these warnings when I rename a column using dplyr::rename after reading it using the readr package.

The old name of the column is not renamed in the spec attribute. So removing the the spec attribute makes the warnings go away. Also removing the "spec_tbl_df" class seems like a good idea.

attr(dat, "spec") <- NULL
class(dat) <- setdiff(class(dat), "spec_tbl_df")