celeryy server error: "cannot mix new setting names with old setting names" while running the server

Question

I am using celery server with radis as a broker but when I am trying to run the celery server following error occur:

I am using following command to run the server : celery worker -A app.celery --loglevel=info

Answer 1

You may have picked up stale instructions that refer to old celery constant names. It's probably (and hopefully) just a matter of making sure you're using the new names. (The error suggests switching to the old names, if the code is going to be long-lived, using the newer names is preferable.)

See the "Note:" near the top of http://docs.celeryproject.org/en/latest/userguide/configuration.html