CUDA11.2 安装pytorch报错：ERROR: Could not install packages due to an OSError: [Errno 2] No such file or

ubuntu服务器CUDA版本为11.2，查询官网发现pytorch没有对应版本，直接安装CUDA11.3版本的torch：

pip3 install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu113

报错如下：

ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory: '/root/anaconda3/envs/mmdetection/lib/python3.7/site-packages/torch/_C.cpython-37m-x86_64-linux-gnu.so'

此报错与pytorch版本和cuda版本不对应无关，是权限不足引发的报错，解决方法为在pip install后面加上--user:

pip3 install --user torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu113

torch安装成功，代码能够成功运行，没有与CUDA版本不兼容的问题！