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OpenCV fails to install on Jetson Nano

I am attempting to install OpenCV on my Jetson Nano following the "Get Your Jestson Nano Working" instructions in the Donkey Car instructions and when I complete the Cmake Setup instructions:

Create a build directory

cd projects/cv2/opencv

mkdir build

cd build

Setup CMake

cmake -D CMAKE_BUILD_TYPE=RELEASE \

-D CMAKE_INSTALL_PREFIX=/usr/local \

-D INSTALL_PYTHON_EXAMPLES=ON \

-D INSTALL_C_EXAMPLES=OFF \

-D OPENCV_ENABLE_NONFREE=ON \

# Contrib path
-D OPENCV_EXTRA_MODULES_PATH=~/projects/cv2/opencv_contrib/modules \

# Your virtual environment's Python executable
# You need to specify the result of echo $(which python)
-D PYTHON_EXECUTABLE=~/env/bin/python \

-D BUILD_EXAMPLES=ON ../opencv

I get a message saying "CMake Error: The source directory "/home/donkey/projects/cv2/opencv/opencv" does not exist.

Of course it does not exist because "projects/cv2/opencv/" is in the "home" directory and there is no "donkey" directory in the "home" directory. Can anyone tell me what in the Cmake Setup instructions are causing "donkey" directory and the additional "/opencv" to be inserted in the installation path? I suspect that the Cmake Setup "-D CMAKE_INSTALL_PREFIX=/usr/local \" might be causing the problem. Also "-D OPENCV_EXTRA_MODULES_PATH=~/projects/cv2/opencv_contrib/modules \" does not result in an error. Regards, TCIII

OpenCV fails to install on Jetson Nano

I am attempting to install OpenCV on my Jetson Nano following the "Get Your Jestson Nano Working" instructions in the Donkey Car instructions and when I complete the Cmake Setup instructions:

# Create a build directory
directory cd projects/cv2/opencv projects/cv2/opencv mkdir build build cd build Setup CMake build # Setup CMake cmake -D CMAKE_BUILD_TYPE=RELEASE \ \ -D CMAKE_INSTALL_PREFIX=/usr/local \ -D INSTALL_PYTHON_EXAMPLES=ON \ -D INSTALL_C_EXAMPLES=OFF \ -D OPENCV_ENABLE_NONFREE=ON \ # Contrib path -D OPENCV_EXTRA_MODULES_PATH=~/projects/cv2/opencv_contrib/modules \ # Your virtual environment's Python executable # You need to specify the result of echo $(which python) -D PYTHON_EXECUTABLE=~/env/bin/python \ -D BUILD_EXAMPLES=ON ../opencv I get a message saying "CMake Error: The source directory "/home/donkey/projects/cv2/opencv/opencv" does not exist. Of course it does not exist because "projects/cv2/opencv/" is in the "home" directory and there is no "donkey" directory in the "home" directory. Can anyone tell me what in the Cmake Setup instructions are causing "donkey" directory and the additional "/opencv" to be inserted in the installation path? I suspect that the Cmake Setup "-D CMAKE_INSTALL_PREFIX=/usr/local \" might be causing the problem. Also "-D OPENCV_EXTRA_MODULES_PATH=~/projects/cv2/opencv_contrib/modules \" does not result in an error. Regards, TCIII

          3    retagged 
      updated 
        2020-09-05 07:00:29 -0600
     
    sturkmen  
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  OpenCV fails to install on Jetson Nano
 I am attempting to install OpenCV on my Jetson Nano following the "Get Your Jestson Nano Working" instructions in the Donkey Car instructions and when I complete the Cmake Setup instructions:
 # Create a build directory
cd projects/cv2/opencv

mkdir build

cd build

# Setup CMake
cmake -D CMAKE_BUILD_TYPE=RELEASE \

    -D CMAKE_INSTALL_PREFIX=/usr/local \

    -D INSTALL_PYTHON_EXAMPLES=ON \

    -D INSTALL_C_EXAMPLES=OFF \

    -D OPENCV_ENABLE_NONFREE=ON \

    # Contrib path
    -D OPENCV_EXTRA_MODULES_PATH=~/projects/cv2/opencv_contrib/modules \

    # Your virtual environment's Python executable
    # You need to specify the result of echo $(which python)
    -D PYTHON_EXECUTABLE=~/env/bin/python \

    -D BUILD_EXAMPLES=ON ../opencv
 I get a message saying "CMake Error: The source directory "/home/donkey/projects/cv2/opencv/opencv" does not exist.
 Of course it does not exist because "projects/cv2/opencv/" is in the "home" directory and there is no "donkey" directory in the "home" directory.
Can anyone tell me what in the Cmake Setup instructions are causing "donkey" directory and the additional "/opencv" to be inserted in the installation path?
I suspect that the Cmake Setup "-D CMAKE_INSTALL_PREFIX=/usr/local \" might be causing the problem. Also "-D OPENCV_EXTRA_MODULES_PATH=~/projects/cv2/opencv_contrib/modules \" does not result in an error.
Regards,
TCIII