cudnn problem

[MozhdehDokhani]

Hi,
I successfully installed my nvidia driver and cuda 9.1. I also did everything that is needed to install cudnn 7.1. but when I run th eval.lua ...., I face the following error:

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'libcudnn (R7) not found in library path.
Please install CuDNN from https://developer.nvidia.com/cuDNN
Then make sure files named as libcudnn.so.7 or libcudnn.7.dylib are placed in
your library load path (for example /usr/local/lib , or manually add a path to LD_LIBRARY_PATH)

Alternatively, set the path to libcudnn.so.7 or libcudnn.7.dylib
to the environment variable CUDNN_PATH and rerun torch.
For example: export CUDNN_PATH = "/usr/local/cuda/lib64/libcudnn.so.7"
/////////////////////////////////////////////////////////////////

My .bashrc file containes:

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export PATH=/usr/local/cuda-9.1/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/usr/local/cuda-9.1/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
export CUDA_HOME=/usr/local/cuda-9.1
/////////////////////////////////////////////////////////////////

and I'm sure that the libcudnn.so.7 file exists in /usr/local/cuda-9.1/lib64
Any solution ?! :(

System Information:
Os: Ubuntu 18.04
Nvidia driver version: 390.48

[MozhdehDokhani]

Today I added this line to .bashrc file:

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export CUDNN_PATH=/usr/local/cuda-9.1/lib64/libcudnn.so.7
/////////////////////////////////////////////////////////////////

and the error changed to:

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Found Environment variable CUDNN_PATH = /usr/local/cuda-9.1/lib64/libcudnn.so.7/home/mozhdeh/torch/install/bin/luajit: /home/mozhdeh/torch/install/share/lua/5.1/trepl/init.lua:389: /home/mozhdeh/torch/install/share/lua/5.1/trepl/init.lua:389: /home/mozhdeh/torch/install/share/lua/5.1/cudnn/ffi.lua:1743: /usr/local/cuda-9.1/lib64/libcudnn.so.7: cannot open shared object file: No such file or directory
/////////////////////////////////////////////////////////////////

[chengkunli96]

the same problem,Have you sloved it?

[MozhdehDokhani]

Yeah, user the command below:
git clone https://github.com/soumith/cudnn.torch.git -b R7 && cd cudnn.torch && luarocks make cudnn-scm-1.rockspec

and it'll be fixed :)