python setup.py bdist_wheel error like#162

[xudh1991]

I encountered the same problem as #162
my command：
git clone https://github.com/traveller59/spconv.git --recursive
cd spconv && git checkout 7342772

pytorch: '1.9.0+cu111'
python:3.7.9

I have joined --recursive. How should I solve this problem now, Thank you very much