ImportError: libcudnn.so.7: cannot open shared object file: No such file or directory [closed]

Answer 1

I installed the nvidia-cuda-toolkit package:

$ sudo apt install nvidia-cuda-toolkit

and it worked.

I did not find the solution nor on the tensorflow website nor on the nvidia installation page. I found it by luck while looking for a way to get the cuda version with a command line: How to get the cuda version?