frepplectl migrate does complete

[wlfnp]

Hi community,
I'm having problems installing frepple locally on ubuntu 20

root@frepple:~# frepplectl migrate
Traceback (most recent call last):
File "/usr/bin/frepplectl", line 42, in
django.setup()
File "/usr/local/lib/python3.8/dist-packages/django/init.py", line 19, in setup
configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
File "/usr/local/lib/python3.8/dist-packages/django/conf/init.py", line 79, in getattr
self._setup(name)
File "/usr/local/lib/python3.8/dist-packages/django/conf/init.py", line 66, in _setup
self._wrapped = Settings(settings_module)
File "/usr/local/lib/python3.8/dist-packages/django/conf/init.py", line 157, in init
mod = importlib.import_module(self.SETTINGS_MODULE)
File "/usr/lib/python3.8/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "", line 848, in exec_module
File "", line 219, in _call_with_frames_removed
File "/usr/lib/python3/dist-packages/freppledb/settings.py", line 480, in
app_module = importlib.import_module(app)
File "/usr/lib/python3.8/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "", line 848, in exec_module
File "", line 219, in _call_with_frames_removed
File "/usr/lib/python3/dist-packages/freppledb/boot/init.py", line 444, in
raise e
File "/usr/lib/python3/dist-packages/freppledb/boot/init.py", line 437, in
mod = import_module("%s.attributes" % app)
File "/usr/lib/python3.8/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 961, in _find_and_load_unlocked
File "", line 219, in _call_with_frames_removed
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "", line 848, in exec_module
File "", line 219, in _call_with_frames_removed
File "/usr/local/lib/python3.8/dist-packages/django_filters/init.py", line 7, in
from .filterset import FilterSet
File "/usr/local/lib/python3.8/dist-packages/django_filters/filterset.py", line 15, in
from .filters import (
File "/usr/local/lib/python3.8/dist-packages/django_filters/filters.py", line 9, in
from django.db.models.sql.constants import QUERY_TERMS
ImportError: cannot import name 'QUERY_TERMS' from 'django.db.models.sql.constants' (/usr/local/lib/python3.8/dist-packages/django/db/models/sql/constants.py)

Does anybody have the same issue or is capable to provide database schema?
Also docker installation does not end.
After issuing docker run command, I have the message
Waiting for the database to be ready

Thanks a lot

[wlfnp]

self solved: installed pakages with apt package manager instead pip3