ValueError: No application configured for scope type ‘http’

in my django terminal message

It’s my first time using Stack Overflow, so it’s hard. Please understand if I’m not good at asking questions

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

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

application = ProtocolTypeRouter({
    'websocket': AuthMiddlewareStack(
        URLRouter(
            chat.routing.websocket_urlpatterns
        )
    ),
})

this is my asgi.py code help me! thank you guys

settings.py
ASGI_APPLICATION = ‘hyean.asgi.application’