AttributeError: 'LeastSquaresError' object has no attribute 'get_init_raw_predictions'

[rb-mwindh]

I had some issues getting started with this repo, a hint on which python version to use would have been helpful.
FYI: when I first got started with this repo, I was using Python v3.8, which resulted in installation errors. After downgrading to Python v3.6.15, make install and python app.py run smoothly.

However, when executing ./make_predict.sh, I get the the following error message:

Traceback (most recent call last):
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 2309, in __call__
    return self.wsgi_app(environ, start_response)
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 2295, in wsgi_app
    response = self.handle_exception(e)
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 1741, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/testuser/.py36/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/testuser/xpand/flask-ml-azure-serverless/app.py", line 68, in predict
    prediction = list(clf.predict(scaled_payload))
  File "/home/testuser/.py36/lib/python3.6/site-packages/sklearn/ensemble/_gb.py", line 2569, in predict
    return self._raw_predict(X).ravel()
  File "/home/testuser/.py36/lib/python3.6/site-packages/sklearn/ensemble/_gb.py", line 1655, in _raw_predict
    raw_predictions = self._raw_predict_init(X)
  File "/home/testuser/.py36/lib/python3.6/site-packages/sklearn/ensemble/_gb.py", line 1649, in _raw_predict_init
    raw_predictions = self.loss_.get_init_raw_predictions(
AttributeError: 'LeastSquaresError' object has no attribute 'get_init_raw_predictions'

I assume, this is due to some version conflict between the serialized prediction model from boston_housing_prediction.joblib and the version of scikit-learn.

I'm using an umodified version of requirements.txt.

Output of $ pip freeze:

astroid==2.4.2
click==8.0.4
dataclasses==0.8
Flask==1.0.2
importlib-metadata==4.8.3
isort==5.10.1
itsdangerous==2.0.1
Jinja2==3.0.3
joblib==1.1.1
lazy-object-proxy==1.4.3
MarkupSafe==2.0.1
mccabe==0.6.1
numpy==1.19.5
pandas==1.1.5
pylint==2.6.2
python-dateutil==2.8.2
pytz==2022.6
scikit-learn==0.22.2
scipy==1.5.4
six==1.16.0
toml==0.10.2
typed-ast==1.4.3
typing_extensions==4.1.1
Werkzeug==2.0.3
wrapt==1.14.1
zipp==3.6.0

Can you please help me resolving this issue as I'm unable to continue my training without this...