1. ws/settings.py

INSTALLED_APPS = [
    'channels',     # add
    'chat',         # add
     
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

# WSGI_APPLICATION = 'ws.wsgi.application'
ASGI_APPLICATION = "ws.asgi.application"    # add

Note
The Channels development server will conflict with any other third-party apps that require an overloaded or replacement runserver command. In order to solve such issues, try moving channels to the top of your INSTALLED_APPS or remove the offending app altogether.

2. ws/asgi.py

import os

from channels.routing import ProtocolTypeRouter
from django.core.asgi import get_asgi_application

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

application = ProtocolTypeRouter({
    "http" : get_asgi_application(),
    # Just HTTP for now. (We can add other protocols later.)
})

Change existing content of asgi.py

3. Start runserver

when runserver, if you see below error message

(.venv) C:\Work\Python project\ws.daonelab.com>python manage.py migrate

run above command and start again

then you can see, below message

Starting ASGI/Channels version 3.0.5 development server at http://127.0.0.1:8000/

instead of below message

Starting development server at http://127.0.0.1:8000/

without error message