[GitHub] [airflow] LsYueh edited a comment on issue #15354: Error on DAG deletion : AttributeError: type object 'Base' has no attribute '_decl_class_registry'

[GitBox <gi...@apache.org>]

LsYueh edited a comment on issue #15354:
URL: https://github.com/apache/airflow/issues/15354#issuecomment-822890280


   Same issue while use the CLI.
   
   **Apache Airflow version**: 2.0.1
   
   
   **Environment**:
   
   - **OS**: CentOS 7.9.2009
   - **Kernel**: Linux 3.10.0-1160.24.1.el7.x86_64
   - **Install tools**: pip 21.0.1
   - **Others**: PostgreSQL-12、Python 3.6.8
   
   - **Installed Packages in Python**: [requirements.txt](https://github.com/apache/airflow/files/6339859/requirements.txt)
   
   **What happened**:
   ```console
   Traceback (most recent call last):
     File "/home/devel/env-airflow/bin/airflow", line 8, in <module>
       sys.exit(main())
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/__main__.py", line 40, in main
       args.func(args)
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/cli/cli_parser.py", line 48, in command
       return func(*args, **kwargs)
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/utils/cli.py", line 89, in wrapper
       return f(*args, **kwargs)
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/cli/commands/dag_command.py", line 143, in dag_delete
       message = api_client.delete_dag(dag_id=args.dag_id)
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/api/client/local_client.py", line 35, in delete_dag
       count = delete_dag.delete_dag(dag_id)
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/utils/session.py", line 65, in wrapper
       return func(*args, session=session, **kwargs)
     File "/home/devel/env-airflow/lib64/python3.6/site-packages/airflow/api/common/experimental/delete_dag.py", line 54, in delete_dag
       for model in models.base.Base._decl_class_registry.values():  # noqa pylint: disable=protected-access
   AttributeError: type object 'Base' has no attribute '_decl_class_registry'
   ```
   


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