Question: I have setup celery, rabbitmq and django web server on digitalocean. RabbitMQ runs on another server where my Django app is not running. When I am trying to add the tasks to the queue using delay I am getting an error  AttributeError: 'ChannelPromise' object has no attribute 'value'  From django shell I am adding the task to my message queue. python3 manage.py shell Python 3.8.10 (default, Mar 15 2022, 12:22:08) [GCC 9.4.0] on linux Type "help", "copyright", "credits" or "license" for more information. (InteractiveConsole) >>> from app1.tasks import add >>> add.delay(5, 6)  But getting error Traceback (most recent call last): File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/utils/functional.py", line 30, in __call__ return self.__value__ AttributeError: 'ChannelPromise' object has no attribute '__value__' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/connection.py", line 446, in _reraise_as_library_errors yield File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/connection.py", line 433, in _ensure_connection return retry_over_time( File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/utils/functional.py", line 312, in retry_over_time return fun(*args, **kwargs) File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/connection.py", line 877, in _connection_factory self._connection = self._establish_connection() File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/connection.py", line 812, in _establish_connection conn = self.transport.establish_connection() File "/etc/myprojectenv/lib/python3.8/site-packages/kombu/transport/pyamqp.py", line 201, in establish_connection conn.connect() File "/etc/myprojectenv/lib/python3.8/site-packages/amqp/connection.py", line 323, in connect self.transport.connect() File "/etc/myprojectenv/lib/python3.8/site-packages/amqp/transport.py", line 129, in connect self._connect(self.host, self.port, self.connect_timeout) File "/etc/myprojectenv/lib/python3.8/site-packages/amqp/transport.py", line 184, in _connect self.sock.connect(sa) ConnectionRefusedError: [Errno 111] Connection refused  Started celery as : celery -A myproject worker -l info  which gives me User information: uid=0 euid=0 gid=0 egid=0 warnings.warn(SecurityWarning(ROOT_DISCOURAGED.format( -------------- celery@ubuntu-s-1vcpu-1gb-blr1-01 v5.2.7 (dawn-chorus) --- ***** ----- -- ******* ---- Linux-5.4.0-107-generic-x86_64-with-glibc2.29 2022-06-09 17:24:14 - *** --- * --- - ** ---------- [config] - ** ---------- .> app: myproject:0x7fd64fa5d970 - ** ---------- .> transport: amqp://himanshu:**@IPADDRESS2:5672/vhostcheck - ** ---------- .> results: - *** --- * --- .> concurrency: 1 (prefork) -- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker) --- ***** ----- -------------- [queues] .> celery exchange=celery(direct) key=celery [tasks] . app1.tasks.add [2022-06-09 17:24:14,309: INFO/MainProcess] Connected to amqp://himanshu:**@IPADDRESS:5672/vhostcheck [2022-06-09 17:24:14,313: INFO/MainProcess] mingle: searching for neighbors [2022-06-09 17:24:15,333: INFO/MainProcess] mingle: all alone [2022-06-09 17:24:15,349: WARNING/MainProcess] /etc/myprojectenv/lib/python3.8/site-packages/kombu/pidbox.py:70: UserWarning: A node named celery@ubuntu-s-1vcpu-1gb-blr1-01 is already using this process mailbox! [2022-06-09 17:24:15,352: WARNING/MainProcess] /etc/myprojectenv/lib/python3.8/site-packages/celery/fixups/django.py:203: UserWarning: Using settings.DEBUG leads to a memory leak, never use this setting in production environments! warnings.warn('''Using settings.DEBUG leads to a memory [2022-06-09 17:24:15,352: INFO/MainProcess] celery@ubuntu-s-1vcpu-1gb-blr1-01 ready.  Inside app1 project : tasks.py from __future__ import absolute_import, unicode_literals from celery import shared_task @shared_task def add(x, y): return x + y  settings.py INSTALLED_APPS = [ ... 'app1', 'django_celery_results', ] CELERY_RESULT_BACKEND = 'django-db' CELERY_CACHE_BACKEND = 'django-cache' CELERY_BROKER_URL = 'amqp://himanshu:password@IPADDRESS:5672/vhostcheck' CELERY_ACCEPT_CONTENT = ['application/json'] CELERY_TASK_SERIALIZER = 'json' CELERY_RESULT_SERIALIZER = 'json' CELERY_TIMEZONE = 'Europe/Amsterdam' 

Answer: To ensure the app is loaded when Django starts, we need to import the Celery app we defined in myproject/__init__.py: sudo nano myproject/__init__.py  # This will make sure the app is always imported when # Django starts so that shared_task will use this app. from .celery import app as celery_app __all__ = ['celery_app']