Celery Setup with rabbitmq and Redis

[baraa722]

I am using Celery with rabbitmq to utilize the queueing feature and i am mixing it with flask, following the documentation step by step, one of the options that I am trying to use is the backend option when preparing celery app, setting it up to use redis, but when i try to use job.get() but i get this exception

raise NotImplementedError(E_NO_BACKEND.strip()) NotImplementedError: No result backend is configured.

here is the setup of the celery app

celery = Celery('CeleryConfig',
broker='amqp://guest:guest@localhost:5672',
backend='redis://localhost:6379',
include=['tasks'],
worker_prefetch_multiplier=1,
result_persistent=True,
result_serializer='json',
task_serializer='json',
accept_content=['json'])