django 安装channels 启动程序报错 Cannot import ASGI

新手安装django 安装 channels启动报错： 

项目名称：django_project

app名称chat：

setting.py

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

ASGI_APPLICATION = "django_project.routing.application"
# 指定ASGI的路由地址

django_project/django_project/routing.py

from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter,URLRouter
import chat.routing
application = ProtocolTypeRouter({
    'websocket': AuthMiddlewareStack(
        URLRouter(
            chat.routing.websocket_urlpatterns # 指明路由文件是django_project/routing.py
        )
    ),
})

启动django报错

Starting ASGI/Channels version 2.1.7 development server at http://0.0.0.0:80/
Quit the server with CTRL-BREAK.
Exception in thread Thread-1:
Traceback (most recent call last):
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\site-packages\channels\routing.py", line 33, in get_default_application
    module = importlib.import_module(path)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "D:\wyldjango\django_project\django_project\routing.py", line 3, in <module>
    import chat.routing
  File "D:\wyldjango\django_project\chat\routing.py", line 2, in <module>
    from chat.consumers import ChatConsumer
ModuleNotFoundError: No module named 'chat.consumers'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\threading.py", line 917, in _bootstrap_inner
    self.run()
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\site-packages\channels\management\commands\runserver.py", line 101, in inner_run
    application=self.get_application(options),
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\site-packages\channels\management\commands\runserver.py", line 126, in get_application
    return StaticFilesWrapper(get_default_application())
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\lib\site-packages\channels\routing.py", line 35, in get_default_application
    raise ImproperlyConfigured("Cannot import ASGI_APPLICATION module %r" % path)
django.core.exceptions.ImproperlyConfigured: Cannot import ASGI_APPLICATION module 'django_project.routing'