Error when install feast 0.9 version in Spark Environment

[mramosMS]

when I try to run this line:
pip3 install -r requirements.txt

I get the following error:

Building wheels for collected packages: feast-spark
Building wheel for feast-spark (PEP 517) ... error
ERROR: Command failed out with exit status 1:
command: /usr/bin/python3 /tmp/tmp9mm3nd4r build_wheel /tmp/tmpprsm3cex
cwd: /tmp/pip-req-build-36302qmf/cluster/sdk/python
Complete output (6 lines):
WARNING: '.' not a valid package name; please use only .-separated package names in setup.py
running bdist_wheel
running build
running build_py
running build_proto
error: [Errno 2] No such file or directory: 'python'**

ERROR: Failed building wheel for feast-spark

[Rakesh-Raushan]

@mramosMS For me downgrading the the protobuf resolved this error.