About the CUDA error

[SSZ1]

My computer has CUDA11.3 installed. But when I ran the "python setup.py develop", I met a error that showed in the terminal:
No CUDA runtime is found, using CUDA_HOME='/usr/local/cuda-11.3:/usr/local/cuda'
Compiling voxel_pooling_ext without CUDA
running develop
/home/ssz/anaconda3/envs/aedet/lib/python3.8/site-packages/setuptools/command/easy_install.py:156: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.

But I do have the CUDA in the direction.

[SSZ1]

Why is this? Thank for your attention.