ValueError: There are missing combinations of ids and times in futr_df. You can run the make_future_dataframe() method to get the expected combinations or the get_missing_future(futr_df) method to get the missing combinations.

ValueError: There are missing combinations of ids and times in futr_df. You can run the make_future_dataframe() method to get the expected combinations or the get_missing_future(futr_df) method to get the missing combinations. #1409