Starting the server with Daphne crashed:

bash-4.4# daphne -b 0.0.0.0 -p 5000 config.asgi:application --proxy-headers
Traceback (most recent call last):
  File "/usr/bin/daphne", line 6, in <module>
    from daphne.cli import CommandLineInterface
  File "/usr/lib/python3.6/site-packages/daphne/cli.py", line 7, in <module>
    from asgiref.compatibility import is_double_callable
ModuleNotFoundError: No module named 'asgiref.compatibility'