No module named 'quark'

[onemoreflag]

Traceback (most recent call last):
File "start.py", line 14, in
from model.android_sample_model import AndroidSampleModel
File "\quark-rule-generate\model\android_sample_model.py", line 2, in
from quark.Objects.quark import Quark
ModuleNotFoundError: No module named 'quark'

Although I did all the steps
$ git clone https://github.com/quark-engine/quark-rule-generate.git; cd quark-rule-generate/
$ pipenv install --skip-lock
$ pipenv shell
$ git submodule init
$ git submodule update --remote; cd quark-engine/
$ python setup.py install; cd ..