Can't import Airflow plugins

Question

Following Airflow tutorial here.

Problem: The webserver returns the following error

Broken DAG: [/usr/local/airflow/dags/test_operat         


        

Answer 1

I encountered the same error while following these tutorials.

My fault, however, was that I had used space character ' ' in task_id, which isn't supported by Airflow.

Clearly the error didn't point towards the actual problem. Restarting both Airflow scheduler and webserver then showed the correct error message on WebUI.