Resolve invalid field name errors

This page describes how to fix a chart on your report that displays an "Invalid field name error."

Why it breaks

Certain connectors support characters in their field names that Looker Studio is unable to process. For example, Looker Studio does not handle BigQuery fields that contain Unicode characters and special characters including ampersands, colons, among other characters.

Learn more about BigQuery flexible column names.

Solution

To resolve this issue, rename the fields from the underlying dataset and then reconnect the data source.