我很困惑，从一个奇怪的错误，我不知道，因为我是新的celery ，这个错误发生在刚刚设置阶段，每件事都简单地配置为写在celery doc https://docs.celeryq.dev/en/stable/django/first-steps-with-django.html的tracback是：

(env) muhammad@huzaifa:~/Desktop/practice/app$ celery -A app worker -l INFO
[2022-04-04 16:21:40,988: WARNING/MainProcess] No hostname was supplied. Reverting to default 'localhost'
[2022-04-04 16:21:40,993: CRITICAL/MainProcess] Unrecoverable error: AttributeError("'EntryPoint' object has no attribute 'module_name'")
Traceback (most recent call last):
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/app/base.py", line 1250, in backend
    return self._local.backend
AttributeError: '_thread._local' object has no attribute 'backend'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/worker/worker.py", line 203, in start
    self.blueprint.start(self)
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/bootsteps.py", line 112, in start
    self.on_start()
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/apps/worker.py", line 136, in on_start
    self.emit_banner()
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/apps/worker.py", line 170, in emit_banner
    ' \n', self.startup_info(artlines=not use_image))),
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/apps/worker.py", line 232, in startup_info
    results=self.app.backend.as_uri(),
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/app/base.py", line 1252, in backend
    self._local.backend = new_backend = self._get_backend()
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/app/base.py", line 955, in _get_backend
    backend, url = backends.by_url(
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/app/backends.py", line 69, in by_url
    return by_name(backend, loader), url
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/app/backends.py", line 47, in by_name
    aliases.update(load_extension_class_names(extension_namespace))
  File "/home/muhammad/Desktop/practice/env/lib/python3.8/site-packages/celery/utils/imports.py", line 146, in load_extension_class_names
    yield ep.name, ':'.join([ep.module_name, ep.attrs[0]])
AttributeError: 'EntryPoint' object has no attribute 'module_name'

初始化文件为：

from __future__ import absolute_import, unicode_literals

from .celery import app as celery_app

__all__ = ('celery_app',)

celery.py:

import os

from celery import Celery

# Set the default Django settings module for the 'celery' program.

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'app.settings')

app = Celery('app', broker='localhost')

# Using a string here means the worker doesn't have to serialize

# the configuration object to child processes.

# - namespace='CELERY' means all celery-related configuration keys

# should have a `CELERY_` prefix.

app.config_from_object('django.conf:settings', namespace='CELERY')

# Load task modules from all registered Django apps.

app.autodiscover_tasks()

@app.task(bind=True)
def debug_task(self):
    print(f'Request: {self.request!r}')

为了您的信息，rabbitmq服务器运行在本地主机上，这就是为什么我设置BROKER_URL为'localhost'

rabbitmq-server.service - RabbitMQ Messaging Server
     Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: enabled)
     Active: active (running) since Sun 2022-04-03 16:14:04 PKT; 24h ago
   Main PID: 1005 (beam.smp)
     Status: "Initialized"
      Tasks: 91 (limit: 9090)

idk为什么会发生这种情况，我一直在寻找周围像小时，找不到一个解决方案，甚至没有错误的谷歌或任何地方。任何帮助将不胜感激，谢谢！