Celery: Auto Discovery Does Not Find Tasks Module In App

I have the following setup with a fresh installed celery and django 1.4: settings.py: import djcelery djcelery.setup_loader() BROKER_HOST = 'localhost' BROKER_PORT = 5672 BROKER_

Solution 1:

Add CELERY_IMPORTS to your settings.py:

CELERY_IMPORTS = ('testapp.tasks',)

Import all the tasks in testapp.tasks.__init__ file

Then Celery will import all tasks from testapp.tasks folder and name them as they are

Solution 2:

This was a bug in django-celery 2.5.4, please upgrade to 2.5.5!

Solution 3:

For any one who stumbles here looking for similar problem solution.

In my case it was switching from old module bases INSTALLED_APPS setting to a new AppConfig based configuration.

New applications should avoid default_app_config. Instead they should require the dotted path to the appropriate AppConfig subclass to be configured explicitly in INSTALLED_APPS.

To fix this you should change the way you feed packages to celery, as stated here in the 2248 Celery issue:

from django.apps import apps
app.autodiscover_tasks(lambda: [n.name for n in apps.get_app_configs()]

Instead of the old Celery 3 way:

app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)

Solution 4:

I had the same issue with django 1.4.1 celery 3.0.9 and fixed it by naming the task.

@task() -> @task(name='testapp.tasks.add')

Solution 5:

In my case, I couldn't figure out the problem until I tried to import the tasks in shell (python or python manage.py shell).

>>>from project_name.tasks import task_add