# Libcudnn\_cnn\_infer.so.8 library can not found **URL:** \ **Category:** Uncategorized\ **Created:** [October 29, 2022, 4:50am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661 "2022-10-29T04:50:36Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Icyrockton](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/icyrockton/32/53514_2.png) [@Icyrockton](https://discuss.pytorch.org/u/Icyrockton)\ **Post date:** [October 29, 2022, 4:50am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/1 "2022-10-29T04:50:36Z")
I鈥檓 using miniconda + wsl. I have instaled cudnn + cuda toolkit when I run pytorch project ```python /home/icy/miniconda3/envs/torch_new/bin/python /home/icy/source/examples/mnist/main.py /home/icy/miniconda3/envs/torch_new/lib/python3.9/site-packages/torch/lib True /usr/local/cuda Could not load library libcudnn_cnn_infer.so.8. Error: libcuda.so: cannot open shared object file: No such file or directory Please make sure libcudnn_cnn_infer.so.8 is in your library path! Aborted ``` but in my environment , the so library can be found ```python (base) icy@DESKTOP-1D9KUKI:~/source/examples/mnist$ ldconfig -p | grep libcudnn_cnn_infer.so libcudnn_cnn_infer.so.8 (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcudnn_cnn_infer.so.8 libcudnn_cnn_infer.so (libc6,x86-64) => /usr/local/cuda/targets/x86_64-linux/lib/libcudnn_cnn_infer.so ``` any idea how to solve this questions? or how pytorch is find cudnn lib ---
**Author:** ![ncovallero](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/ncovallero/32/45972_2.png) [@ncovallero](https://discuss.pytorch.org/u/ncovallero)\ **Post date:** [November 4, 2022, 6:24am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/2 "2022-11-04T06:24:37Z")
Hi, I also faced the same problem on WSL2. As discussed in this [issue](https://github.com/microsoft/WSL/issues/8587) it is just a matter to add this in the .bashrc: ```auto export LD_LIBRARY_PATH=/usr/lib/wsl/lib:$LD_LIBRARY_PATH ``` Be sure that your library is in /usr/lib/wsl/lib, to see it you can run ```auto ldconfig -p | grep cuda ``` ---
**Author:** ![Icyrockton](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/icyrockton/32/53514_2.png) [@Icyrockton](https://discuss.pytorch.org/u/Icyrockton)\ **Post date:** [November 7, 2022, 11:42am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/4 "2022-11-07T11:42:26Z")
I have downgraded to Ubuntu20.04 wsl. this problem was gone. I think is related to Ubuntu 22.04 thanks for your helping by the way. ---
**Author:** ![robot-nano](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/robot-nano/32/43559_2.png) [@robot-nano](https://discuss.pytorch.org/u/robot-nano)\ **Post date:** [November 11, 2022, 5:58pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/5 "2022-11-11T17:58:54Z")
Hello @kcyrockton Do you solve the issue with ubuntu22.04? I have the same bug! ---
**Author:** ![Icyrockton](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/icyrockton/32/53514_2.png) [@Icyrockton](https://discuss.pytorch.org/u/Icyrockton)\ **Post date:** [November 14, 2022, 8:43am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/6 "2022-11-14T08:43:59Z")
nope I have downgraded to Ubuntu20.04 ---
**Author:** ![zfb](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/zfb/32/55540_2.png) [@zfb](https://discuss.pytorch.org/u/zfb)\ **Post date:** [December 9, 2022, 5:47am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/7 "2022-12-09T05:47:51Z")
Thank you so much! It works ---
**Author:** ![bramgrooten](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/bramgrooten/32/36259_2.png) [@bramgrooten](https://discuss.pytorch.org/u/bramgrooten)\ **Post date:** [December 16, 2022, 10:31am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/8 "2022-12-16T10:31:27Z")
Thanks! This worked for me on WSL2 with Ubuntu22.04 馃檪 ---
**Author:** ![plebreton](https://discuss.pytorch.org/letter_avatar_proxy/v4/letter/p/9f8e36/32.png) [@plebreton](https://discuss.pytorch.org/u/plebreton)\ **Post date:** [January 16, 2023, 2:30am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/9 "2023-01-16T02:30:20Z")
I had the same issue on Ubuntu 22.04. The error message is a bit misleading: ```auto Could not load library libcudnn_cnn_infer.so.8. Error: libcuda.so: cannot open shared object file: No such file or directory Please make sure libcudnn_cnn_infer.so.8 is in your library path! ``` The problem is not libcudnn\_cnn\_infer.so.8 as the second line says, but as mentioned in the first line, libcudnn\_cnn\_infer.so.8 is trying to open libcuda.so that it cannot find. On my distribution, I had a libcuda.so.1 but no libcuda.so. So I made a symbolic link from libcuda.so.1 to libcuda.so and it worked. ---
**Author:** ![ptrblck](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/ptrblck/32/1823_2.png) [@ptrblck](https://discuss.pytorch.org/u/ptrblck)\ **Post date:** [January 17, 2023, 6:25am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/10 "2023-01-17T06:25:29Z")
Did you build PyTorch from source or did you install the pip wheels or conda binaries? Also, did you see the issue only on WSL2? ---
**Author:** ![plebreton](https://discuss.pytorch.org/letter_avatar_proxy/v4/letter/p/9f8e36/32.png) [@plebreton](https://discuss.pytorch.org/u/plebreton)\ **Post date:** [January 18, 2023, 6:17am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/11 "2023-01-18T06:17:33Z")
In my case, I installed it with pip. And it is on a native Ubuntu 22.04 LTS (not WSL) For me, I considered it as solved. But I just mentioned my solution in case that would be helpful. ---
**Author:** ![barry1](https://discuss.pytorch.org/letter_avatar_proxy/v4/letter/b/7bcc69/32.png) [@barry1](https://discuss.pytorch.org/u/barry1)\ **Post date:** [January 22, 2023, 8:21pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/12 "2023-01-22T20:21:24Z")
I鈥檓 seeing a similar issue except I wouldn鈥檛 be able to use the recommended solution for downgrading to Ubuntu 22.04 since I鈥檓 on Debian bookworm. I do have LD\_LIBRARY\_PATH set to `:/home/barry1/miniconda3/envs/tf/lib/` does anyone have any other recommendations? fixed it using the solution here: [/usr/lib/wsl/lib/libcuda.so.1 is not a symbolic link 路 Issue #5663 路 microsoft/WSL 路 GitHub](https://github.com/microsoft/WSL/issues/5663#issuecomment-1068499676) WSL is garbage. that is all. ---
**Author:** ![hohomi](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/hohomi/32/57809_2.png) [@hohomi](https://discuss.pytorch.org/u/hohomi)\ **Post date:** [February 28, 2023, 5:01pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/13 "2023-02-28T17:01:40Z")
Thank you! It works. I have solved the issue under ubuntu 22.04. ---
**Author:** ![diegocaples](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/diegocaples/32/58831_2.png) [@diegocaples](https://discuss.pytorch.org/u/diegocaples)\ **Post date:** [March 26, 2023, 7:49pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/14 "2023-03-26T19:49:24Z")
worked with WSL2 on ubuntu 22.04 for me as well! ---
**Author:** ![luomin5417](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/luomin5417/32/59234_2.png) [@luomin5417](https://discuss.pytorch.org/u/luomin5417)\ **Post date:** [April 7, 2023, 3:13pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/15 "2023-04-07T15:13:02Z")
i have same problem锛宎nd i can鈥檛 find the libcudnn\_cnn\_infer.so.8 in the /usr/lib/wsl/lib ---
**Author:** ![hayesgb](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/hayesgb/32/59551_2.png) [@hayesgb](https://discuss.pytorch.org/u/hayesgb)\ **Post date:** [April 16, 2023, 12:39pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/16 "2023-04-16T12:39:21Z")
I encountered this on WSL2 as well. Fixed by [/usr/lib/wsl/lib/libcuda.so.1 is not a symbolic link 路 Issue #5663 路 microsoft/WSL 路 GitHub](https://github.com/microsoft/WSL/issues/5663#issuecomment-1068499676) ---
**Author:** ![lewiz](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/lewiz/32/59660_2.png) [@lewiz](https://discuss.pytorch.org/u/lewiz)\ **Post date:** [April 18, 2023, 7:36pm UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/17 "2023-04-18T19:36:23Z")
Thanks pal, it solves the issue ! ---
**Author:** ![Redev](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/redev/32/60365_2.png) [@Redev](https://discuss.pytorch.org/u/Redev)\ **Post date:** [May 10, 2023, 7:35am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/18 "2023-05-10T07:35:52Z")
I had the same problem, none of the solutions here worked, in the end the problem was my shell since i was usign fish, tried every solution in this thread and then i just used bash and it worked ---
**Author:** ![zhangl1201](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/zhangl1201/32/60840_2.png) [@zhangl1201](https://discuss.pytorch.org/u/zhangl1201)\ **Post date:** [May 29, 2023, 7:04am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/19 "2023-05-29T07:04:13Z")
also worked for me with WSL2, ubuntu 22.04 ---
**Author:** ![binze\_wang](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/binze_wang/32/61005_2.png) [@binze\_wang](https://discuss.pytorch.org/u/binze_wang)\ **Post date:** [June 15, 2023, 12:55am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/20 "2023-06-15T00:55:17Z")
thank you, your answer solves my question! ---
**Author:** ![Dulshan\_Madusanka](https://discuss.pytorch.org/user_avatar/discuss.pytorch.org/dulshan_madusanka/32/61619_2.png) [@Dulshan\_Madusanka](https://discuss.pytorch.org/u/Dulshan_Madusanka)\ **Post date:** [June 26, 2023, 4:25am UTC](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661/21 "2023-06-26T04:25:27Z")
Hey, thanks. this worked. [Next page](https://discuss.pytorch.org/t/libcudnn-cnn-infer-so-8-library-can-not-found/164661.md?page=2)