How to install apex

[Zerycii]

I always meet this error.Can someone help me?

[akshaypn]

Hi, I am also facing the exact same issue. Did anyone find a fix?

[XYkong-CS]

It seems you should install "torch" before installing apex.

[rensiyingying]

Hi,Maybe you could try command: pip install -v --disable-pip-version-check --no-cache-dir --no-build-isolation --global-option="--cpp_ext" --global-option="--cuda_ext" ./

[lix19937]

git clone https://github.com/NVIDIA/apex
cd apex
# if pip >= 23.1 
pip install -v --disable-pip-version-check --no-cache-dir --no-build-isolation --config-settings "--build-option=--cpp_ext" --config-settings "--build-option=--cuda_ext" ./

# otherwise
pip install -v --disable-pip-version-check --no-cache-dir --no-build-isolation --global-option="--cpp_ext" --global-option="--cuda_ext" ./

And you should make sure your torch cuda version must match the /usr/local/cuda/bin/nvcc