Hello Everyone.
Last month I create 1 data set in BigQuery and export all my billing information.but i got my import data status is showing "Error" like 'NoneType' object has no attribute 'lower'. i didn't understand why i got this error in my cloud data source application.
can any one help me.
One of the table's fields has no values or has an unknown values. Calling lower() method captures no value that causes the error. I would recommend to contact Google to investigate your logs and identify what field that is causing this error. https://cloud.google.com/contact