Daphne 3.0.1 Apps aren't loaded yet.

Hello I’m facing this issue on daphne 3.0.1 :

` ● daphne.service - daphne daemon Loaded: loaded (/etc/systemd/system/daphne.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Tue 2020-11-24 15:13:06 UTC; 5s ago Process: 3125951 ExecStart=/usr/local/bin/daphne -u /home/git/demo_API/www/demo_ws.sock demo_API.asgi:application -v 1 --access-log /home/git/demo_API/www/logs/debug.log (code=exited, status=1/FAILURE) Main PID: 3125951 (code=exited, status=1/FAILURE)

Nov 24 15:13:06 ubuntu daphne[3125951]: class AbstractBaseUser(models.Model): Nov 24 15:13:06 ubuntu daphne[3125951]: File “/home/git/.local/lib/python3.8/site-packages/django/db/models/base.py”, line 108, in __ new __ Nov 24 15:13:06 ubuntu daphne[3125951]: app_config = apps.get_containing_app_config(module) Nov 24 15:13:06 ubuntu daphne[3125951]: File “/home/git/.local/lib/python3.8/site-packages/django/apps/registry.py”, line 253, in get_containing_app_config Nov 24 15:13:06 ubuntu daphne[3125951]: self.check_apps_ready() Nov 24 15:13:06 ubuntu daphne[3125951]: File “/home/git/.local/lib/python3.8/site-packages/django/apps/registry.py”, line 136, in check_apps_ready Nov 24 15:13:06 ubuntu daphne[3125951]: raise AppRegistryNotReady(“Apps aren’t loaded yet.”) Nov 24 15:13:06 ubuntu daphne[3125951]: django.core.exceptions.AppRegistryNotReady: Apps aren’t loaded yet. `

I’m running :

python 3.8.5 daphne v3.0.1 gunicorn v20.0.4 nginx v1.18.0 redis v3.5.3 channels v3.0.2 channels-redis v3.2.0 django v3.1.3

asgi.py :

import os from channels.routing import ProtocolTypeRouter, URLRouter from django.core.asgi import get_asgi_application from chat.auth.jwt_auth_middleware import SimpleJwtTokenAuthMiddleware from chat import routing as core_routing

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'demo_API.settings') django_asgi_app = get_asgi_application()

application = ProtocolTypeRouter({ "http": django_asgi_app, "websocket": SimpleJwtTokenAuthMiddleware( URLRouter( core_routing.websocket_urlpatterns ) ), })

routing.py (in chat app) :

from . import consumers from django.urls import re_path

websocket_urlpatterns = [ re_path(r'^chatws$', consumers.ChatConsumer.as_asgi()), ]

settings.py :

INSTALLED_APPS = [ 'channels', 'chat', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'rest_framework', 'rest_framework_simplejwt', ] ASGI_APPLICATION = ‘demo_API.asgi.application’`

CHANNEL_LAYERS = { 'default': { 'BACKEND': 'channels_redis.core.RedisChannelLayer', 'CONFIG': { "hosts": ['127.0.0.1', 6379)], }, }, } `

wsgi.py :

import os

from django.core.wsgi import get_wsgi_application

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

application = get_wsgi_application()

/etc/systemd/system/daphne.service :

[Unit] Description=daphne daemon After=network.target

[Service] PIDFile=/run/daphne/pid User=git Group=www-data WorkingDirectory=/home/git/demo_API/www/ Environment="DJANGO_SETTINGS_MODULE=demo_API.settings" ExecStart=/home/git/demo_API/www/venv/bin/daphne -u /home/git/demo_API/www/demo_chat.sock demo_API.asgi:application -v 1 --access-log /home/git/demo_API/www/logs/debug.log ExecReload=/bin/kill -s HUP $MAINPID ExecStop=/bin/kill -s TERM $MAINPID Restart=on-abort PrivateTmp=true

[Install] WantedBy=multi-user.target

If i get everything back to old version it works again using old channels code & files. channels==2.4.0 daphne==2.5.0 channels-redis==2.4.1

Things i tried so far :

• Removing all old daphne versions.

• Installing daphne using a superuser session.

• Changing the order of installed apps on settings.py.

• Running daphne without -u .sock.

• Tested AuthMiddleware instead of my custom SimpleJwtTokenAuthMiddleware in asgi.py + testing without Auths.

• Running daphne command line directly on django folder.

And nothing seems to work so far.

Also same error on local running just : daphne demo_API.asgi:application

Details :

(venv) altroo@Altroo demo_API % daphne demo_API.asgi:application Traceback (most recent call last): File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/bin/daphne”, line 8, in <module> sys.exit(CommandLineInterface.entrypoint()) File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/daphne/cli.py”, line 170, in entrypoint cls().run(sys.argv[1:]) File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/daphne/cli.py”, line 232, in run application = import_by_path(args.application) File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/daphne/utils.py”, line 12, in import_by_path target = importlib.import_module(module_path) File “/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/importlib/init.py”, line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File “<frozen importlib._bootstrap>”, line 1014, in _gcd_import File “<frozen importlib._bootstrap>”, line 991, in _find_and_load File “<frozen importlib._bootstrap>”, line 975, in _find_and_load_unlocked File “<frozen importlib._bootstrap>”, line 671, in _load_unlocked File “<frozen importlib._bootstrap_external>”, line 783, in exec_module File “<frozen importlib._bootstrap>”, line 219, in _call_with_frames_removed File “./demo_API/asgi.py”, line 15, in <module> from chat.auth.jwt_auth_middleware import SimpleJwtTokenAuthMiddleware File “./chat/auth/jwt_auth_middleware.py”, line 1, in <module> from channels.auth import AuthMiddlewareStack File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/channels/auth.py”, line 12, in <module> from django.contrib.auth.models import AnonymousUser File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/django/contrib/auth/models.py”, line 2, in <module> from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/django/contrib/auth/base_user.py”, line 48, in <module> class AbstractBaseUser(models.Model): File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/django/db/models/base.py”, line 108, in __ new __ app_config = apps.get_containing_app_config(module) File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/django/apps/registry.py”, line 253, in get_containing_app_config self.check_apps_ready() File “/Applications/XAMPP/xamppfiles/htdocs/demo_API/venv/lib/python3.8/site-packages/django/apps/registry.py”, line 136, in check_apps_ready raise AppRegistryNotReady(“Apps aren’t loaded yet.”) django.core.exceptions.AppRegistryNotReady: Apps aren’t loaded yet.

Any help or suggestions will be apreciated.

[carltongibson]

Hi @Altroo.

See the updated deployment docs here:

https://channels.readthedocs.io/en/stable/deploying.html#configuring-the-asgi-application

I think the issue will be the JWT auth middleware. Looks like it’s accessing the user model before this line:

django_asgi_app = get_asgi_application()

I’d say that if you move that import below there it should work.

[Altroo]

Hi @Altroo.

See the updated deployment docs here:

https://channels.readthedocs.io/en/stable/deploying.html#configuring-the-asgi-application

I think the issue will be the JWT auth middleware. Looks like it’s accessing the user model before this line:

django_asgi_app = get_asgi_application()

I’d say that if you move that import below there it should work.

You’re a wizard harry ! thank’s alot it really worked, many daphne users really have this same issue on stackoverflow, your answer will save them.