我已按照频道 2 教程进行操作,但运行后出现此错误py manage.py runserver
File "C:\Users\Mach2\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 'channels_test.routing'