Libcudnn.so.8: not found

Jetson Linux 36.4 + Orin NX
after installing nvidia-jetpack successfully. libcudnn.so.8 is still not found

via@via-desktop:~$ sudo apt install nvidia-jetpack
[sudo] password for via:
Reading package lists… Done
Building dependency tree… Done
Reading state information… Done
nvidia-jetpack is already the newest version (6.1+b123).
The following packages were automatically installed and are no longer required:
gdal-data libaec0 libarmadillo10 libarpack2 libavcodec-dev libavformat-dev libavutil-dev libblosc1 libcfitsio9 libcharls2 libdc1394-dev
libdeflate-dev libdouble-conversion3 libevent-core-2.1-7 libevent-pthreads-2.1-7 libexif-dev libfabric1 libfreexl1 libfyba0 libgdal30
libgdcm-dev libgdcm3.0 libgeos-c1v5 libgeos3.10.2 libgeotiff5 libgl2ps1.4 libglew2.2 libgphoto2-dev libhdf4-0-alt libhdf5-103-1
libhdf5-hl-100 libheif1 libhwloc-plugins libhwloc15 libilmbase-dev libjbig-dev libjpeg-dev libjpeg-turbo8-dev libjpeg8-dev libjsoncpp25
libkmlbase1 libkmldom1 libkmlengine1 liblept5 libminizip1 libmysqlclient21 libnetcdf19 libodbc2 libodbcinst2 libogdi4.1
libopencv-calib3d4.5d libopencv-contrib4.5d libopencv-dnn4.5d libopencv-features2d4.5d libopencv-flann4.5d libopencv-highgui4.5d
libopencv-imgcodecs4.5d libopencv-imgproc4.5d libopencv-ml4.5d libopencv-objdetect4.5d libopencv-photo4.5d libopencv-shape4.5d
libopencv-stitching4.5d libopencv-superres4.5d libopencv-video4.5d libopencv-videoio4.5d libopencv-videostab4.5d libopencv-viz4.5d
libopenexr-dev libopenmpi3 libpmix2 libpng-dev libpq5 libproj22 libraw1394-dev librttopo1 libsocket++1 libspatialite7 libsuperlu5
libswresample-dev libswscale-dev libsz2 libtbb-dev libtesseract4 libtiff-dev libtiffxx5 libucx0 liburiparser1 libvtk9.1 libxerces-c3.2
libxnvctrl0 mysql-common proj-data unixodbc-common
Use ‘sudo apt autoremove’ to remove them.
0 upgraded, 0 newly installed, 0 to remove and 179 not upgraded.
via@via-desktop:~$ python
Python 3.10.12 (main, Jul 29 2024, 16:56:48) [GCC 11.4.0] on linux
Type “help”, “copyright”, “credits” or “license” for more information.

import ultralytics
Traceback (most recent call last):
File “”, line 1, in
File “/home/via/.local/lib/python3.10/site-packages/ultralytics/init.py”, line 11, in
from ultralytics.models import NAS, RTDETR, SAM, YOLO, FastSAM, YOLOWorld
File “/home/via/.local/lib/python3.10/site-packages/ultralytics/models/init.py”, line 3, in
from .fastsam import FastSAM
File “/home/via/.local/lib/python3.10/site-packages/ultralytics/models/fastsam/init.py”, line 3, in
from .model import FastSAM
File “/home/via/.local/lib/python3.10/site-packages/ultralytics/models/fastsam/model.py”, line 5, in
from ultralytics.engine.model import Model
File “/home/via/.local/lib/python3.10/site-packages/ultralytics/engine/model.py”, line 8, in
import torch
File “/home/via/.local/lib/python3.10/site-packages/torch/init.py”, line 237, in
from torch._C import * # noqa: F403
ImportError: libcudnn.so.8: cannot open shared object file: No such file or directory

Hi,

JetPack 6.1 includes cuDNN version v9.3.0.
So you won’t be able to find the cuDNN 8.x libraries.

Which Ultralytics version do you install?
It looks like the latest version should be compatible with JetPack 6.1.
Could you try to upgrade the pip tool and try it again?

Thanks.

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