我想创建聊天应用程序，我在这里遵循https://channels.readthedocs.io/en/latest/tutorial/part_2.html，

chat/
    __init__.py
    routing.py
    urls.py
    settings.py
    wsgi.py

我把这个代码加到我的routing. py

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import chat.routing

application = ProtocolTypeRouter({
    # (http->django views is added by default)
    'websocket': AuthMiddlewareStack(
        URLRouter(
            chat.routing.websocket_urlpatterns
        )
    ),
})

在我的网站上settings.py

ASGI_APPLICATION = 'Accounting.routing.application'
CHANNEL_LAYERS = {
    'default': {
        'BACKEND': 'channels_redis.core.RedisChannelLayer',
        'CONFIG': {
            "hosts": [('127.0.0.1', 6379)],
        },
    },
}

在我的网站上urls.py

urlpatterns = [
    path('chat/', include('chat.urls')),
    path('admin/', admin.site.urls),
]

在我聊天应用程序中

chat/
    __init__.py
    consumers.py
    routing.py
    templates/
        chat/
            index.html
            room.html
    urls.py
    views.py

我有www.example.comconsumers.py

from asgiref.sync import async_to_sync
from channels.generic.websocket import WebsocketConsumer
import json

class ChatConsumer(WebsocketConsumer):
    def connect(self):
        self.room_name = self.scope['url_route']['kwargs']['room_name']
        self.room_group_name = 'chat_%s' % self.room_name

        # Join room group
        async_to_sync(self.channel_layer.group_add)(
            self.room_group_name,
            self.channel_name
        )

        self.accept()

    def disconnect(self, close_code):
        # Leave room group
        async_to_sync(self.channel_layer.group_discard)(
            self.room_group_name,
            self.channel_name
        )

    # Receive message from WebSocket
    def receive(self, text_data):
        text_data_json = json.loads(text_data)
        message = text_data_json['message']

        # Send message to room group
        async_to_sync(self.channel_layer.group_send)(
            self.room_group_name,
            {
                'type': 'chat_message',
                'message': message
            }
        )

    # Receive message from room group
    def chat_message(self, event):
        message = event['message']

        # Send message to WebSocket
        self.send(text_data=json.dumps({
            'message': message
        }))

这是我聊天中的代码〉www.example.comrouting.py

from django.urls import re_path

from . import consumers

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

在我的聊天中〉www.example.comviews.py

from django.shortcuts import render

def index(request):
    return render(request, 'chat/index.html', {})

def room(request, room_name):
    return render(request, 'chat/room.html', {
        'room_name': room_name
    })

我的聊天应用程序中有www.example.comurls.py in my chat app
从django.urls导入路径

from . import views
app_name = 'chat'
urlpatterns = [
    path('', views.index, name='index'),
    path('<str:room_name>/', views.room, name='room'),
]

我按照所有的方向，我复制粘贴代码，py的位置，tourorial中的一切，但我仍然得到这个错误

我错过什么了吗？
更新

当我尝试这个在我的pycharm终端码头运行-p 6379：6379-d redis：2. 8