# Unable to install OpenCV 3.2 with JetPack 4.6.3 in AGX Xavier **URL:** \ **Category:** Jetson AGX Xavier\ **Tags:** opencv, ros\ **Created:** [February 28, 2023, 10:42am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363 "2023-02-28T10:42:45Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![RaviJoshi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@RaviJoshi](https://forums.developer.nvidia.com/u/RaviJoshi)\ **Post date:** [February 28, 2023, 10:42am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/1 "2023-02-28T10:42:45Z")
I am using ROS Melodic (Ubuntu 18.04 LTS), so I used JetPack v4.6.3 to get started with the AGX Xavier device. While compiling a ROS package, I got the OpenCV mismatch error as shown below: ```auto CMake Error at CMakeLists.txt:31 (find_package): Could not find a configuration file for package "OpenCV" that is compatible with requested version "3". The following configuration files were considered but not accepted: /usr/lib/aarch64-linux-gnu/cmake/opencv4/OpenCVConfig.cmake, version: 4.1.1 -- Configuring incomplete, errors occurred! ``` I looked at the OpenCV package installed on AGX Xavier and found two versions as shown below: ```auto ravi@ubuntu:~/ros_ws$ dpkg -l | grep libopencv ii libopencv 4.1.1-2-gd5a58aa75 arm64 Open Computer Vision Library ii libopencv-calib3d3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Camera Calibration library ii libopencv-core3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision core library ii libopencv-dev 4.1.1-2-gd5a58aa75 arm64 Development files for Open Source Computer Vision Library ii libopencv-features2d3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Feature Detection and Descriptor Extraction library ii libopencv-flann3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Clustering and Search in Multi-Dimensional spaces library ii libopencv-highgui3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision High-level GUI and Media I/O library ii libopencv-imgcodecs3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Image Codecs library ii libopencv-imgproc3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Image Processing library ii libopencv-ml3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Machine Learning library ii libopencv-python 4.1.1-2-gd5a58aa75 arm64 Python bindings for Open Source Computer Vision Library ii libopencv-samples 4.1.1-2-gd5a58aa75 arm64 Samples for Open Source Computer Vision Library ii libopencv-videoio3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Video I/O library ``` You can see there are two versions, i.e., 3.2.0 installed by ROS, and 4.1.1 installed by JetPack. Therefore, in order to fix my issue, I tried installing OpenCV 3.2.0 from source. I quickly jumped into jetsonhacks/buildOpenCVXavier repository. I set the OPENCV\_VERSION=3.2.0 and executed the script. Unfortunately, the compilation did not work. Below is the errors snippet: ```auto CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: CUDA_nppi_LIBRARY (ADVANCED) linked by target "opencv_cudev" in directory /home/ravi/opencv/modules/cudev linked by target "opencv_cudev" in directory /home/ravi/opencv/modules/cudev linked by target "opencv_test_cudev" in directory /home/ravi/opencv/modules/cudev/test linked by target "opencv_test_core" in directory /home/ravi/opencv/modules/core linked by target "opencv_core" in directory /home/ravi/opencv/modules/core linked by target "opencv_core" in directory /home/ravi/opencv/modules/core linked by target "opencv_perf_core" in directory /home/ravi/opencv/modules/core ... ``` The logs are really long. So [I posted them to Pastebin to keep this post shorter and cleaner](https://pastebin.com/iatCXxLx). Any workaround, please. Thank you ---
**Author:** ![DaneLLL](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/danelll/32/14043_2.png) [@DaneLLL](https://forums.developer.nvidia.com/u/DaneLLL)\ **Post date:** [March 1, 2023, 2:55am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/3 "2023-03-01T02:55:55Z")
Hi, There is a script from a contributor and yo may give it a try: [GitHub - mdegans/nano\_build\_opencv: Build OpenCV on Nvidia Jetson Nano](https://github.com/mdegans/nano_build_opencv) You may also refer to: [https://developer.nvidia.com/blog/accelerating-ai-modules-for-ros-and-ros-2-on-jetson/](https://developer.nvidia.com/blog/accelerating-ai-modules-for-ros-and-ros-2-on-jetson/) ---
**Author:** ![RaviJoshi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@RaviJoshi](https://forums.developer.nvidia.com/u/RaviJoshi)\ **Post date:** [March 1, 2023, 3:30am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/4 "2023-03-01T03:30:26Z")
Hello @DaneLLL Thank you very much for your kind support. I tried [mdegans/nano\_build\_opencv](https://github.com/mdegans/nano_build_opencv) for installing version 3.2.0, but got exactly the same error as mentioned in my logs above. Below is the error snippet: ```auto CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: CUDA_nppi_LIBRARY (ADVANCED) linked by target "opencv_cudev" in directory /tmp/build_opencv/opencv/modules/cudev linked by target "opencv_cudev" in directory /tmp/build_opencv/opencv/modules/cudev linked by target "opencv_core" in directory /tmp/build_opencv/opencv/modules/core linked by target "opencv_core" in directory /tmp/build_opencv/opencv/modules/core linked by target "opencv_cudaarithm" in directory /tmp/build_opencv/opencv/modules/cudaarithm linked by target "opencv_cudaarithm" in directory /tmp/build_opencv/opencv/modules/cudaarithm linked by target "opencv_flann" in directory /tmp/build_opencv/opencv/modules/flann ``` Any workaround, please. Thank you again ---
**Author:** ![RaviJoshi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@RaviJoshi](https://forums.developer.nvidia.com/u/RaviJoshi)\ **Post date:** [March 1, 2023, 3:42am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/5 "2023-03-01T03:42:43Z")
Next, I tried installing OpenCV 3.4.3 as 3.2.0 failed. Unfortunately, this one showed another error `nvcc fatal : Unsupported gpu architecture 'compute_87'`. Below is more information: ```auto /tmp/build_opencv/opencv/modules/cudalegacy/include/opencv2/cudalegacy/NCVHaarObjectDetection.hpp: In member function 'void HaarFeature64::getRect(Ncv32u*, Ncv32u*, Ncv32u*, Ncv32u*)': /tmp/build_opencv/opencv/modules/cudalegacy/include/opencv2/cudalegacy/NCVHaarObjectDetection.hpp:102:56: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] NcvRect8u tmpRect = *(NcvRect8u*)(&this->_ui2.x); ^ /tmp/build_opencv/opencv/modules/cudalegacy/include/opencv2/cudalegacy/NCVHaarObjectDetection.hpp:102:56: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] [30%] Built target pch_Generate_opencv_ximgproc [30%] Built target pch_Generate_opencv_bgsegm [30%] Built target pch_Generate_opencv_aruco [30%] Built target pch_Generate_opencv_xfeatures2d [30%] Built target pch_Generate_opencv_optflow [30%] Built target pch_Generate_opencv_stitching Makefile:162: recipe for target 'all' failed make: *** [all] Error 2 [1%] Built target gen-pkgconfig [3%] Built target libjasper [8%] Built target IlmImf [14%] Built target libprotobuf [17%] Built target carotene_objs [18%] Built target tegra_hal [18%] Built target opencv_cudev [18%] Built target opencv_core_pch_dephelp [18%] Built target pch_Generate_opencv_core [18%] Building NVCC (Device) object modules/core/CMakeFiles/cuda_compile_1.dir/src/cuda/cuda_compile_1_generated_gpu_mat.cu.o nvcc fatal : Unsupported gpu architecture 'compute_87' CMake Error at cuda_compile_1_generated_gpu_mat.cu.o.RELEASE.cmake:221 (message): Error generating /tmp/build_opencv/opencv/build/modules/core/CMakeFiles/cuda_compile_1.dir/src/cuda/./cuda_compile_1_generated_gpu_mat.cu.o ``` ---
**Author:** ![DaneLLL](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/danelll/32/14043_2.png) [@DaneLLL](https://forums.developer.nvidia.com/u/DaneLLL)\ **Post date:** [March 1, 2023, 7:17am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/6 "2023-03-01T07:17:54Z")
Hi, Looks like the previous version does not support Xavier GPU. We would suggest use later version of OpenCV. For a try you can grep `compute_` to find out where the architectures are defined, and then add `compute_87`. This is not recommended but you may give it a try. ---
**Author:** ![RaviJoshi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@RaviJoshi](https://forums.developer.nvidia.com/u/RaviJoshi)\ **Post date:** [March 2, 2023, 2:30am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/7 "2023-03-02T02:30:15Z")
Thank you very much. The reason why I chose OpenCV 3.2.0 is that ROS Melodic comes with this OpenCV. My quick solution to this problem is to remove `libopencv` first, and then install `libopencv 3.2.0` as shown below: ```auto $ sudo apt purge --remove libopencv $ sudo apt install libopencv-dev=3.2.0+dfsg-4ubuntu0.1 ``` A consequence to this workaround is that the OpenCV 3.2.0 installed this way is CPU only. But for now ROS Melodic is working fine! ---
**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\ **Post date:** [March 21, 2023, 6:11am UTC](https://forums.developer.nvidia.com/t/unable-to-install-opencv-3-2-with-jetpack-4-6-3-in-agx-xavier/244363/9 "2023-03-21T06:11:10Z")
Closed on March 21, 2023, 6:11am UTC This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.