Join Error in left_join() – "Join columns in y must be present in the data"

Issues
#1

Problem

While performing a Left Join , the following error occurred:

Error in dplyr::left_join(x = x, y = y, by = by, copy = copy, suffix = suffix,  : 
  Join columns in `y` must be present in the data.
✖ Problem with `Type`.

This error indicates that the specified join column, Type, does not exist in the right-hand data frame (y). dplyr::left_join() requires that all join columns explicitly exist in both data frames. If the column is missing in y, the function fails with this message.

Workaround

To resolve this issue:

  1. Check for case sensitivity or typographical errors. Column names in R are case-sensitive, so Type and type would be treated as different.

  2. Ensure the join column exists in the right-hand data frame (y):