CUDA version Error about extension-cpp HOT 3 OPEN

For your cuda version problem :

You most likely have both cuda 10 and cuda 9 installed.
What it the output of nvcc --version?
See here about how the pytorch extension tries to find cuda.

A part from uninstalling cuda9, you can try to set the environment variable to your cuda 10.1 directory, I'll assume it's the usual /usr/local/cuda-10.1

export CUDA_HOME=/usr/local/cuda-10.1

from extension-cpp.

/bin/sh: 1: /usr/local/cuda-9.0/bin/nvcc: not found

There is a : behind 1
It is the reason of this problem. I have encountered this problem before.
So you need two steps:

1. vi ~/.bashrc
2. add export CUDA_HOME="/usr/local/cuda-10.1"
3. add export PATH="$PATH:/usr/local/cuda/bin"
4. add export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/cuda/lib64"
5. source ~/.bashrc

from extension-cpp.

/bin/sh: 1: /usr/local/cuda-9.0/bin/nvcc: not found

There is a : behind 1 It is the reason of this problem. I have encountered this problem before. So you need two steps:

1. vi ~/.bashrc
2. add export CUDA_HOME="/usr/local/cuda-10.1"
3. add export PATH="$PATH:/usr/local/cuda/bin"
4. add export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/cuda/lib64"
5. source ~/.bashrc

Thanks bro! You save my sleep tonight🥹.

from extension-cpp.