I was trying to build the openwisp docker, it fails with following error (pasting last stage)
Step 5/10 : RUN pip3 install -U .
---> Running in 1943a8ef202d
Processing /usr/src/app
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-req-build-ljuc33ce/setup.py", line 5, in <module>
from openwisp_controller import get_version
ModuleNotFoundError: No module named 'openwisp_controller'
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-req-build-ljuc33ce/
The command '/bin/sh -c pip3 install -U .' returned a non-zero code: 1