'WebSocketProtocol' object has no attribute 'application_queue' error Django Channels

Question

In my Django project I want to create a chat app using channels.But when I followed this tutorial: https://channels.readthedocs.io/en/stable/tutorial/part_2.html , I had a problem that websocket auto disconnect after connect :

 Exception in callback AsyncioSelectorReactor.callLater.<locals>.run()
at
 C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\twisted\internet\asyncioreact
 or.py:287 handle: <TimerHandle when=19405.993
 AsyncioSelectorReactor.callLater.<locals>.run() at
 C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\twisted\interne
 t\asyncioreactor.py:287> Traceback (most recent call last):   File
 "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\asyncio\events.py",
 line 145, in _run
     self._callback(*self._args)   File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\twisted\internet\asyncioreactor.py",
 line 290, in run
     f(*args, **kwargs)   File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\twisted\internet\tcp.py",
 line 289, in connectionLost
     protocol.connectionLost(reason)   File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\autobahn\twisted\websocket.py",
 line 128, in connectionLost
     self._connectionLost(reason)   File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\autobahn\websocket\protocol.py",
 line 2467, in _connectionLost
     WebSocketProtocol._connectionLost(self, reason)   File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\autobahn\websocket\protocol.py",
 line 1096, in _connectionLost
     self._onClose(self.wasClean, WebSocketProtocol.CLOSE_STATUS_CODE_ABNORMAL_CLOSE, "connection was
 closed uncleanly (%s)" % self.wasNotCleanReason)   File
 "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\autobahn\twisted\websocket.py",
 line 171, in _onClose
     self.onClose(wasClean, code, reason)   File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36-32\lib\site-packages\daphne\ws_protocol.py",
 line 146, in onClose
     self.application_queue.put_nowait({ AttributeError: 'WebSocketProtocol' object has no attribute 'application_queue'

I've fixed it. Above this error should be a list of paths and at the top of that paths are the real error. In my case it was the routing url. — Eduard Albu
– Eduard Albu, Commented May 3, 2018 at 6:34
I've fixed it. Follow @EduardAlbu in my case it wasn't migrate. — Sinionth
– Sinionth, Commented May 3, 2018 at 7:52

Eduard Albu · Accepted Answer · 2018-05-03 07:58:11Z

1

Above this error should be a list of paths and at the top of that paths are the real error. In my case it was the routing url.

answered May 3, 2018 at 7:58

Eduard Albu

3011 silver badge8 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Munim Munna Over a year ago

Are you guys kidding? Anyone reading this question and answer will never know what was the problem. And the answer is like, "Go to the doctor, find your problem, good luck!!"

ahmedakef · Accepted Answer · 2018-05-04 22:51:17Z

1

migration solve it for me

python manage.py migrate

answered May 4, 2018 at 22:51

ahmedakef

3012 silver badges8 bronze badges

Comments

PhilippeT · Accepted Answer · 2018-05-17 16:05:27Z

Just to clarify this error for everyone who faces it while following the channels tutorial for me the error was in my path

2018-05-17 15:55:36,382 - ERROR - ws_protocol - [Failure instance: Traceback: : No route found for path 'ws/chat/me/'.

You can find it on top of the stacktrace

My defined invalid URL pattern "buzz" because I like to change things up. Essentially it works the same way as django url patterns so just need to make sure that your routing structure matches what you specify.

websocket_urlpatterns = [
    url(r'^ws/buzz/(?P<room_name>[^/]+)/$', consumers.ChatConsumer),
]

In my case the route path did not match my websocket patterns I had to update the route path to be correct -> by changing my websocket_urlpatterns back to chat

websocket_urlpatterns = [
    url(r'^ws/chat/(?P<room_name>[^/]+)/$', consumers.ChatConsumer),
]

So the system could resolve my issue. Hopefully it helps people who run into this in the future. Good luck. P.T.

Collectives™ on Stack Overflow

'WebSocketProtocol' object has no attribute 'application_queue' error Django Channels

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related