Superset is failed to start when using latest version

[anle20]

Hi team,

Recently, we found a problem related to the latest version. My service is Superset, and we use Celery and Gunicorn to start the service. Last week, after the marshmallow to the latest version (4.0), we found the service failed to start, then we went back to the previous version (3.26.1), and it worked fine.

So, please help check it.

Some version information:

• Superset: 4.1.2
• Celery: 5.5.1
• Gunicorn: 23.0.0

[lafrech]

We can't do that work for you.

Please see the instructions in the upgrading guide to adapt your code to marshmallow 4: https://marshmallow.readthedocs.io/en/latest/upgrading.html

No rush, marshmallow 3 will be supported for a few months.

You should pin dependencies to avoid major versions sneaking in.