Hi! Please help me with this problem. Thank you in advance for your help. Source code and data are attached. I tried with Anaconda3-5.2.0-Windows-x86_64 (Python 3.6), and afterwards I tried with ...

In _dataframe_client.py at line no 292, tag_df = tag_df.fillna('') # replace NA with empty string throws an exception if any one of the columns is a categorical since '' may not be in the list of ...