Can't run django server

[MrCRR]

My model is still training, and I'd like to run django server to have a look, but get an CommandError:

You have not set ASGI_APPLICATION, which is needed to run the server

Do I have to modify the settings.py myself?

[MrCRR]

package mismatch caused this error, I downgrade some packages and solved this issue: django==1.10 channels>1.0,<2.0