Django asgi TypeError: __call__() missing 1 required positional argument: 'start_response'

[sainyamcc]

Hey guys,
The issue still persists as mentioned in #483 .
TypeError: call() missing 1 required positional argument: 'start_response'
Django 3.2, uvicorn = "^0.17.6", gunicorn = "^19.10.0" I am running the command:
gunicorn --bind 0.0.0.0:8004 myprofject.asgi -w 4 -k uvicorn.workers.UvicornWorker
and here is the log, the startup is fine, but when I try to go to the url it spews out the error:

[2022-05-17 13:44:05 +0200] [68400] [INFO] Starting gunicorn 19.10.0
[2022-05-17 13:44:05 +0200] [68400] [INFO] Listening at: http://0.0.0.0:8004 (68400)
[2022-05-17 13:44:05 +0200] [68400] [INFO] Using worker: uvicorn.workers.UvicornWorker
/Users/maverick/.pyenv/versions/3.9.2/lib/python3.9/os.py:1023: RuntimeWarning: line buffering (buffering=1) isn't supported in binary mode, the default buffer size will be used
  return io.open(fd, *args, **kwargs)
[2022-05-17 13:44:05 +0200] [68401] [INFO] Booting worker with pid: 68401
[2022-05-17 13:44:05 +0200] [68402] [INFO] Booting worker with pid: 68402
[2022-05-17 13:44:05 +0200] [68403] [INFO] Booting worker with pid: 68403
[2022-05-17 13:44:05 +0200] [68404] [INFO] Booting worker with pid: 68404
[2022-05-17 11:44:07 +0000] [68401] [INFO] Started server process [68401]
[2022-05-17 11:44:07 +0000] [68401] [INFO] Waiting for application startup.
[2022-05-17 11:44:07 +0000] [68404] [INFO] Started server process [68404]
[2022-05-17 11:44:07 +0000] [68401] [INFO] ASGI 'lifespan' protocol appears unsupported.
[2022-05-17 11:44:07 +0000] [68402] [INFO] Started server process [68402]
[2022-05-17 11:44:07 +0000] [68404] [INFO] Waiting for application startup.
[2022-05-17 11:44:07 +0000] [68402] [INFO] Waiting for application startup.
[2022-05-17 11:44:07 +0000] [68401] [INFO] Application startup complete.
[2022-05-17 11:44:07 +0000] [68404] [INFO] ASGI 'lifespan' protocol appears unsupported.
[2022-05-17 11:44:07 +0000] [68402] [INFO] ASGI 'lifespan' protocol appears unsupported.
[2022-05-17 11:44:07 +0000] [68403] [INFO] Started server process [68403]
[2022-05-17 11:44:07 +0000] [68402] [INFO] Application startup complete.
[2022-05-17 11:44:07 +0000] [68404] [INFO] Application startup complete.
[2022-05-17 11:44:07 +0000] [68403] [INFO] Waiting for application startup.
[2022-05-17 11:44:07 +0000] [68403] [INFO] ASGI 'lifespan' protocol appears unsupported.
[2022-05-17 11:44:07 +0000] [68403] [INFO] Application startup complete.
[2022-05-17 11:44:09 +0000] [68403] [ERROR] Exception in ASGI application
Traceback (most recent call last):
  File "/Users/maverick/Library/Caches/pypoetry/virtualenvs/xyz-874my7h7-py3.9/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 366, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/Users/maverick/Library/Caches/pypoetry/virtualenvs/xyz-874my7h7-py3.9/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 75, in __call__
    return await self.app(scope, receive, send)
  File "/Users/maverick/Library/Caches/pypoetry/virtualenvs/xyz-874my7h7-py3.9/lib/python3.9/site-packages/uvicorn/middleware/asgi2.py", line 16, in __call__
    instance = self.app(scope)
TypeError: __call__() missing 1 required positional argument: 'start_response'
[2022-05-17 11:44:10 +0000] [68402] [ERROR] Exception in ASGI application
Traceback (most recent call last):
  File "/Users/maverick/Library/Caches/pypoetry/virtualenvs/xyz-874my7h7-py3.9/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 366, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/Users/maverick/Library/Caches/pypoetry/virtualenvs/xyz-874my7h7-py3.9/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 75, in __call__
    return await self.app(scope, receive, send)
  File "/Users/maverick/Library/Caches/pypoetry/virtualenvs/xyz-874my7h7-py3.9/lib/python3.9/site-packages/uvicorn/middleware/asgi2.py", line 16, in __call__
    instance = self.app(scope)
TypeError: __call__() missing 1 required positional argument: 'start_response'

[8bitaby]

Here are the solutions you can try:
1.make sure you have the correct gunicorn.socket and gunicorn.service files.
eg:
$ sudo nano /etc/systemd/system/gunicorn.socket
[Unit]
Description=gunicorn socket

[Socket]
ListenStream=/run/gunicorn.sock

[Install]
WantedBy=sockets.target

$sudo nano /etc/systemd/system/gunicorn.service

[Unit]
Description=gunicorn daemon
Requires=gunicorn.socket
After=network.target

[Service]
User=sammy
Group=www-data
WorkingDirectory=/home/sammy/myprojectdir
ExecStart=/home/sammy/myprojectdir/myprojectenv/bin/gunicorn
--access-logfile -
-k uvicorn.workers.UvicornWorker
--workers 3
--bind unix:/run/gunicorn.sock
myproject.asgi:application

2. Make sure myproject.asgi:application is renamed with your project name with .asgi
3. just add below line to top of your asgi.py file.
   from .wsgi import *
   eg:

from .wsgi import * # add this line to top of your code
from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import comapp.routing as routing

application = ProtocolTypeRouter({
"http": get_asgi_application(),
"websocket": AllowedHostsOriginValidator(
TokenAuthMiddleware(URLRouter(routing.websocket_urlpatterns)))
})

[mattobrien415]

adding from .wsgi import * worked for me. Thank you!

[developer992]

so no explanation
wtf man

i've done this a hundred times and never seen this error WTF IS THIS COMING FROM ?

[bengabp]

are you kidding me, after 2 years not answered

[Kludex]

This is how volunteer work is rewarded:

The issue is mentioned here: #483 (comment)

You should point it to the ASGI application. I'm not familiar with Django, but I think nowadays they offer both files.

Locking this discussion since people are rude.