No such file or directory: '_skbuild/linux-aarch64-3.8/cmake-install/python/cv2/__init__.py'

[twmht]

Expected behaviour

Build wheel successfully on jetson xavier nx

Actual behaviour

Build wheel failed at the end of the build phase

  Traceback (most recent call last):
    File "/home/acer/.pyenv/versions/3.8.12/envs/nx-3.8.12/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 363, in <module>
      main()
    File "/home/acer/.pyenv/versions/3.8.12/envs/nx-3.8.12/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 345, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/home/acer/.pyenv/versions/3.8.12/envs/nx-3.8.12/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 261, in build_wheel
      return _build_backend().build_wheel(wheel_directory, config_settings,
    File "/tmp/pip-build-env-sleawhsc/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 230, in build_wheel
      return self._build_with_temp_dir(['bdist_wheel'], '.whl',
    File "/tmp/pip-build-env-sleawhsc/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 215, in _build_with_temp_dir
      self.run_setup()
    File "/tmp/pip-build-env-sleawhsc/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 267, in run_setup
      super(_BuildMetaLegacyBackend,
    File "/tmp/pip-build-env-sleawhsc/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 158, in run_setup
      exec(compile(code, __file__, 'exec'), locals())
    File "setup.py", line 501, in <module>
      main()
    File "setup.py", line 238, in main
      skbuild.setup(
    File "/tmp/pip-build-env-sleawhsc/overlay/lib/python3.8/site-packages/skbuild/setuptools_wrap.py", line 625, in setup
      _classify_installed_files(cmake_manifest, package_data, package_prefixes,
    File "setup.py", line 371, in _classify_installed_files_override
      with open(os.path.join(cmake_install_dir, "python", "cv2", "__init__.py"), 'r') as opencv_init:
  FileNotFoundError: [Errno 2] No such file or directory: '_skbuild/linux-aarch64-3.8/cmake-install/python/cv2/__init__.py'

See my log
log.txt

Steps to reproduce

git clone --recursive https://github.com/opencv/opencv-python.git
cd opencv-python
export CMAKE_ARGS="-DWITH_CUDA=ON -DENABLE_PRECOMPILED_HEADERS=OFF -DCUDA_ARCH_BIN="7.2" -DCUDA_ARCH_PTX="" -DOPENCV_EXTRA_MODULES_PATH=/home/acer/opencv-python/opencv_contrib/modules -DWITH_GSTREAMER=ON -DWITH_LIBV4L=ON -DBUILD_opencv_python3=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_EXAMPLES=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=/home/acer/opencv-python_build"
export ENABLE_CONTRIB=1
pip wheel . --verbose

Issue submission checklist

• This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
• I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
• The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
• I'm using the latest version of opencv-python

[asenyaev]

I tried to reproduce this issue on Jetson nano, but without CUDA flags and did not faced the error. We had a hard dependency on __init__.py file recently, but it has been fixed (#571). Do you use the latest version of repository? Could you try to build with a tag 62 or if the issue will happen again, to try with 60 tag (to check regression)?

My steps to reproduce w/o CUDA:

git clone --recursive https://github.com/opencv/opencv-python.git && cd opencv-python
export CMAKE_ARGS="-DENABLE_PRECOMPILED_HEADERS=OFF   -DWITH_GSTREAMER=ON -DWITH_LIBV4L=ON -DBUILD_opencv_python3=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_EXAMPLES=OFF -DCMAKE_BUILD_TYPE=RELEASE"
export ENABLE_CONTRIB=1
python3.6 -m pip wheel . --verbose

[mnik17]

Hi @asenyaev,

I just got the same error, but this might be due to compatibility issues. I happen to need OpenCV 2.4.13 as a dependency of another project, so I was following this post's steps. Additionally I run Ubuntu 18.04 (in WSL2) and am using a Conda environment with Python 2.7.17. Pip version is 20.3.4.

The error message is as follows:

Copying files from CMake output
Traceback (most recent call last):
  File "setup.py", line 503, in <module>
    main()
  File "setup.py", line 280, in main
    cmake_source_dir=cmake_source_dir,
  File "/home/milen/.local/lib/python2.7/site-packages/skbuild/setuptools_wrap.py", line 629, in setup
    cmake_source_dir, skbuild_kw['cmake_install_dir'])
  File "setup.py", line 372, in _classify_installed_files_override
    with open(os.path.join(cmake_install_dir, "python", "cv2", "__init__.py"), 'r') as opencv_init:
IOError: [Errno 2] No such file or directory: '_skbuild/linux-x86_64-2.7/cmake-install/python/cv2/__init__.py'

Any idea what can I do to fix this issue?

[alalek]

using a Conda environment with Python 2.7.17.

It is unlikely that opencv-python still supports Python 2.7 (EOL in 2020).

need OpenCV 2.4.13

AFAIK, opencv-python doesn't have support for OpenCV 2.4 packages at all.

---

Try to build OpenCV Python bindings from OpenCV upstream source code.

[mnik17]

AFAIK, opencv-python doesn't have support for OpenCV 2.4 packages at all.

I'm not sure what you mean, but I found that the package, which is installable with pip, that is opencv-python or opencv-contrib-python have no support for 2.4.

Try to build OpenCV Python bindings from OpenCV upstream source code.

Again, what I did was, what was described in the stack overflow post, namely:

1. Clone the repositorty from https://github.com/skvark/opencv-python.git
2. Go into the opencv folder
3. Checkout 2.4
4. Run python setup.py bdist_wheel

Everything worked up untill step 4, where after building everything successfully, it started installing some thng in the opencv-python\_skbuild folder, until it threw the error, which I posted above.

Honestly speaking I've never had any issues with OpenCV, so I might be misunderstanding you, in which case I'm sorry.

[alalek]

Try 3.4 branch of opencv-python repository. Not the "master" branch.

@mnik17 Please don't hijack issue with unrelated comments.

---

@twmht Your problem is here:

-DCMAKE_INSTALL_PREFIX=/home/acer/opencv-python_build

You should not hijack installation location.
It breaks setup.py expectations.

[twmht]

@alalek

you are right.

but where can i find the wheel after the build? I can't find something like dist under _skbuild.

[twmht]

ok. got solved.

[kb173]

Sorry for reviving this issue, but I just tried installing OpenCV on a fairly fresh Raspberry Pi using pip3 install opencv-python and ran into this exact error:

      Configuring Project
        Working directory:
          /tmp/pip-install-xvyvk7gz/opencv-python_5f1967d02aeb4557a27e0369b19c3ac5/_skbuild/linux-armv7l-3.7/cmake-build
        Command:
          cmake /tmp/pip-install-xvyvk7gz/opencv-python_5f1967d02aeb4557a27e0369b19c3ac5/opencv -G 'Unix Makefiles' -DCMAKE_INSTALL_PREFIX:PATH=/tmp/pip-install-xvyvk7gz/opencv-python_5f1967d02aeb4557a27e0369b19c3ac5/_skbuild/linux-armv7l-3.7/cmake-install -DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3 -DPYTHON_VERSION_STRING:STRING=3.7.3 -DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.7m -DPYTHON_LIBRARY:FILEPATH=/usr/lib/arm-linux-gnueabihf/libpython3.7m.so -DSKBUILD:INTERNAL=TRUE -DCMAKE_MODULE_PATH:PATH=/tmp/pip-build-env-zshau83j/overlay/lib/python3.7/site-packages/skbuild/resources/cmake -DPYTHON3_EXECUTABLE=/usr/bin/python3 -DPYTHON3_INCLUDE_DIR=/usr/include/python3.7m -DPYTHON3_LIBRARY=/usr/lib/arm-linux-gnueabihf/libpython3.7m.so -DBUILD_opencv_python3=ON -DBUILD_opencv_python2=OFF -DBUILD_opencv_java=OFF -DOPENCV_PYTHON3_INSTALL_PATH=python -DINSTALL_CREATE_DISTRIB=ON -DBUILD_opencv_apps=OFF -DBUILD_opencv_freetype=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_DOCS=OFF -DPYTHON3_LIMITED_API=ON -DBUILD_OPENEXR=ON -DCMAKE_BUILD_TYPE:STRING=Release
      
      Copying files from CMake output
      Traceback (most recent call last):
        File "/home/pi/.local/lib/python3.7/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 363, in <module>
          main()
        File "/home/pi/.local/lib/python3.7/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 345, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
        File "/home/pi/.local/lib/python3.7/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 262, in build_wheel
          metadata_directory)
        File "/tmp/pip-build-env-zshau83j/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 231, in build_wheel
          wheel_directory, config_settings)
        File "/tmp/pip-build-env-zshau83j/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 215, in _build_with_temp_dir
          self.run_setup()
        File "/tmp/pip-build-env-zshau83j/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 268, in run_setup
          self).run_setup(setup_script=setup_script)
        File "/tmp/pip-build-env-zshau83j/overlay/lib/python3.7/site-packages/setuptools/build_meta.py", line 158, in run_setup
          exec(compile(code, __file__, 'exec'), locals())
        File "setup.py", line 502, in <module>
          main()
        File "setup.py", line 280, in main
          cmake_source_dir=cmake_source_dir,
        File "/tmp/pip-build-env-zshau83j/overlay/lib/python3.7/site-packages/skbuild/setuptools_wrap.py", line 629, in setup
          cmake_source_dir, skbuild_kw['cmake_install_dir'])
        File "setup.py", line 372, in _classify_installed_files_override
          with open(os.path.join(cmake_install_dir, "python", "cv2", "__init__.py"), 'r') as opencv_init:
      FileNotFoundError: [Errno 2] No such file or directory: '_skbuild/linux-armv7l-3.7/cmake-install/python/cv2/__init__.py'

Based on your comment @alalek, I assume this is the culprit: -DCMAKE_INSTALL_PREFIX:PATH=/tmp/pip-install-xvyvk7gz/opencv-python_5f1967d02aeb4557a27e0369b19c3ac5/_skbuild/linux-armv7l-3.7/cmake-install

This was generated by pip, so please let me know if I need to report this somewhere else.

[LennyPhoenix]

@kb173 I am also having this issue on a new raspberry pi

[andyconda]

@kb173 me as well

[apatsekin]

same issue while trying to conda-build package - opencv-contrib-python

[Gittomcat]

same to me on Raspberry Pi4 4 GB:
with open(config_py, 'w') as opencv_init_config:
FileNotFoundError: [Errno 2] No such file or directory: '_skbuild/linux-aarch64-3.9/cmake-install/python/cv2/config-3.py'
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for opencv-contrib-python

[shanyuyuyuer]

same to me on Raspberry Pi4 4 GB: with open(config_py, 'w') as opencv_init_config: FileNotFoundError: [Errno 2] No such file or directory: '_skbuild/linux-aarch64-3.9/cmake-install/python/cv2/config-3.py' [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for opencv-contrib-python

"Hi there! Have you managed to resolve the code problem you were facing? Could you please share any updates or let me know if you need further assistance?"

[textronics]

For me 'pip3 install --upgrade pip' didn't work on python3 / piZero2

But: 'apt install python3-opencv' which will install the prebuilt wheel worked fine.