Expression Error The column of the table was not found in Dataflow
I have a dataflow which has multiple transformation steps, and my one of the steps (shown belwo) named "Invoke Custom Function", now throws an Expression Error,
I did tried to go through the entire query by copying it from the ADVANCED EDITOR and pasting it in notepad and used the (FIND) functionality of notepad to look for the column named EWR_Planner, but this column does not exist in the entire query.
How do I get rid of this expression error from my dataflow
Could you please share the applied codes of the related query in Advanced Editor in order to make troubleshooting? Thank you. In addition, you can review the following similar threads and check whether their solution can also help resolve your problem.