Error while merging

[ankurdas00112]

I have successfully created the LDA model and also made the all_topics dataframe but, when trying to generate results I am always getting a type conversion error "ValueError: You are trying to merge on int64 and object columns. If you wish to proceed you should use pd.concat" (added screenshot). I looked up online and converted the "Dominant_topic" column to integer and string but, it still threw the same error when run. Please help me resolve this issue. Thank you very much.

[LowriWilliams]

You need to make sure the columns your merging on in all dataframes are the same type. So check if dominant topic in all_topics and results are both a string or int.