Celery worker not starting: "Module 'proj' has no attribute 'celery'"

Question

I'm using Django, Celery, and RabbitMQ. When I run celery -A FlakeFinder worker -l INFO from the top level directory, I get the error:

Usage: celery [OPTIONS] COMMAND [ARGS]...

Error: Invalid value for '-A' / '--app': 
Unable to load celery application.
Module 'flakefinder' has no attribute 'celery'

If I instead run celery -A FlakeFinder.celeryApp worker -l INFO , I get this error in purple text:

ModuleNotFoundError: No module named 'celery.backends.amqp'

I'm not really sure where to go from here. How can I get the celery worker running?

My folder structure looks like this:

. (FlakeFinder)
├── FlakeFinder
│   ├── __init__.py
│   ├── asgi.py
│   ├── celeryApp.py
│   ├── secrets.py
│   ├── settings.py
│   ├── tasks.py
│   ├── urls.py
│   └── wsgi.py
├── db.sqlite3
├── license.txt
├── manage.py
├── scraping
│   ├── __init__.py
│   ├── admin.py
│   ├── apps.py
│   ├── migrations
│   ├── models.py
│   ├── scraper.py
│   ├── tests.py
│   └── views.py

celeryApp.py

from __future__ import absolute_import, unicode_literals
import os
from celery import Celery
from celery.schedules import crontab  # scheduler

# default django settings
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'FlakeFinder.settings')

app = Celery('FlakeFinder')
app.conf.timezone = 'UTC'
app.config_from_object("django.conf:settings", namespace="CELERY")
app.autodiscover_tasks()

app.conf.beat_schedule = {
    # executes every 1 minute
    'scraping-task-three-hr': {
        'task': 'scraping.tasks',
        'schedule': crontab()
    }
}

tasks.py

from scraping.scraper import *
from celeryApp import app


@app.task
def update_snow_locs():
    ...

Answer 1

尝试将“celeryApp.py”的名称更改为“celery.py”

Answer 2

I couldn't figure out how to get past this. I solved the issue by downgrading to version 4.4.2.

Answer 3

The AMQP result backend is scheduled for deprecation in version 4.0 and removal in version v5.0. Please use RPC backend or a persistent backend.

Answer 4

The error seems to be quite clear.

from celery import Celery
from celery import task  

celery = Celery('tasks', broker='amqp://guest@localhost//') #!

import os

os.environ[ 'DJANGO_SETTINGS_MODULE' ] = "proj.settings"

@task()
def add_photos_task( lad_id ):
...

This is what I found online with the explanation - "forgot to create a celery object in tasks.py" But no means I am an expert in Celery Module.