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Chris Riccomini commented on AIRFLOW-2021: ------------------------------------------ We have seen an issue similar to this. It was caused by having a bad version of Flask installed. Restarting from a clean virtual environment fixed the problem. > Can't register a GCP connection ID on the web UI > ------------------------------------------------ > > Key: AIRFLOW-2021 > URL: https://issues.apache.org/jira/browse/AIRFLOW-2021 > Project: Apache Airflow > Issue Type: Bug > Components: webapp > Affects Versions: 1.9.0 > Reporter: Yu Ishikawa > Priority: Major > Attachments: airflow_connections_error.png > > > I was not able to register a GCP connection ID on the web UI. The below error > messages appeared. I attached a capture image of the web UI. > > {noformat} > Failed to update record. on_model_change() takes exactly 4 arguments (3 > given){noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005)