我安装不了opencv-python 因为我没有vs？
I can't install opencv-python because I don't have vs?
每当我尝试 pip install opencv-python 时，它都会出现一个错误，提示我需要安装 visual studio 2022，但我已经安装了它。我完全不知道如何解决这个问题，现在真的需要 opencv 才能在我的设备上工作。
我也尝试过使用 opencv-contrib-python 但这给了我同样的错误。
错误信息是：
ERROR: Command errored out with exit status 1:
command: 'c:\program files\python38\python.exe' 'c:\program files\python38\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\NOAH~1.ROB\AppData\Local\Temp\tmpb6spxf7z'
cwd: C:\Users\noah.robb\AppData\Local\Temp\pip-install-g3bef9kp\opencv-contrib-python
Complete output (332 lines):
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Visual Studio 17 2022
could not find any instance of Visual Studio.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Visual Studio 16 2019
could not find any instance of Visual Studio.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Visual Studio 15 2017
could not find any instance of Visual Studio.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
--------------------------------------------------------------------------------
-- Trying "Ninja (Visual Studio 17 2022 x64 v143)" generator
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-- Trying "Ninja (Visual Studio 17 2022 x64 v143)" generator - failure
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-- Trying "Visual Studio 17 2022 x64 v143" generator
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-- Trying "Visual Studio 17 2022 x64 v143" generator - failure
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-- Trying "Ninja (Visual Studio 16 2019 x64 v142)" generator
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-- Trying "Ninja (Visual Studio 16 2019 x64 v142)" generator - failure
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-- Trying "Visual Studio 16 2019 x64 v142" generator
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-- Trying "Visual Studio 16 2019 x64 v142" generator - failure
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-- Trying "Ninja (Visual Studio 15 2017 x64 v141)" generator
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--
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-- Trying "Ninja (Visual Studio 15 2017 x64 v141)" generator - failure
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-- Trying "Visual Studio 15 2017 x64 v141" generator
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-- Trying "Visual Studio 15 2017 x64 v141" generator - failure
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-- Trying "NMake Makefiles (Visual Studio 17 2022 x64 v143)" generator
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--
--
-------
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-- Trying "NMake Makefiles (Visual Studio 17 2022 x64 v143)" generator - failure
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-- Trying "NMake Makefiles (Visual Studio 16 2019 x64 v142)" generator
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--
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-- Trying "NMake Makefiles (Visual Studio 16 2019 x64 v142)" generator - failure
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-- Trying "NMake Makefiles (Visual Studio 15 2017 x64 v141)" generator
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-- Trying "NMake Makefiles (Visual Studio 15 2017 x64 v141)" generator - failure
--------------------------------------------------------------------------------
********************************************************************************
scikit-build could not get a working generator for your system. Aborting build.
Building windows wheels for Python 3.8 requires Microsoft Visual Studio 2022.
Get it with "Visual Studio 2017":
https://visualstudio.microsoft.com/vs/
Or with "Visual Studio 2019":
https://visualstudio.microsoft.com/vs/
Or with "Visual Studio 2022":
https://visualstudio.microsoft.com/vs/
********************************************************************************
----------------------------------------
ERROR: Failed building wheel for opencv-contrib-python
Running setup.py clean for opencv-contrib-python
Failed to build opencv-contrib-python
ERROR: Could not build wheels for opencv-contrib-python which use PEP 517 and cannot be installed directly
我运行这个命令，它解决了我的问题：
pip install --upgrade pip setuptools wheel
然后 运行 指定版本：
pip install -U opencv-python==4.5.5.62
每当我尝试 pip install opencv-python 时，它都会出现一个错误，提示我需要安装 visual studio 2022，但我已经安装了它。我完全不知道如何解决这个问题，现在真的需要 opencv 才能在我的设备上工作。
我也尝试过使用 opencv-contrib-python 但这给了我同样的错误。 错误信息是：
ERROR: Command errored out with exit status 1:
command: 'c:\program files\python38\python.exe' 'c:\program files\python38\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\NOAH~1.ROB\AppData\Local\Temp\tmpb6spxf7z'
cwd: C:\Users\noah.robb\AppData\Local\Temp\pip-install-g3bef9kp\opencv-contrib-python
Complete output (332 lines):
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Visual Studio 17 2022
could not find any instance of Visual Studio.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Visual Studio 16 2019
could not find any instance of Visual Studio.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Ninja
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
Visual Studio 15 2017
could not find any instance of Visual Studio.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
Not searching for unused variables given on the command line.
CMake Error at CMakeLists.txt:2 (PROJECT):
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
-- Configuring incomplete, errors occurred!
See also "C:/Users/noah.robb/AppData/Local/Temp/pip-install-g3bef9kp/opencv-contrib-python/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
--------------------------------------------------------------------------------
-- Trying "Ninja (Visual Studio 17 2022 x64 v143)" generator
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--
--
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-- Trying "Ninja (Visual Studio 17 2022 x64 v143)" generator - failure
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-- Trying "Visual Studio 17 2022 x64 v143" generator
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--
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-- Trying "Visual Studio 17 2022 x64 v143" generator - failure
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-- Trying "Ninja (Visual Studio 16 2019 x64 v142)" generator
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--
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-- Trying "Ninja (Visual Studio 16 2019 x64 v142)" generator - failure
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-- Trying "Visual Studio 16 2019 x64 v142" generator
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-- Trying "Visual Studio 16 2019 x64 v142" generator - failure
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-- Trying "Ninja (Visual Studio 15 2017 x64 v141)" generator
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-- Trying "Ninja (Visual Studio 15 2017 x64 v141)" generator - failure
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-- Trying "Visual Studio 15 2017 x64 v141" generator - failure
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-- Trying "NMake Makefiles (Visual Studio 17 2022 x64 v143)" generator
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-- Trying "NMake Makefiles (Visual Studio 17 2022 x64 v143)" generator - failure
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-- Trying "NMake Makefiles (Visual Studio 16 2019 x64 v142)" generator
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-- Trying "NMake Makefiles (Visual Studio 16 2019 x64 v142)" generator - failure
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-- Trying "NMake Makefiles (Visual Studio 15 2017 x64 v141)" generator
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-- Trying "NMake Makefiles (Visual Studio 15 2017 x64 v141)" generator - failure
--------------------------------------------------------------------------------
********************************************************************************
scikit-build could not get a working generator for your system. Aborting build.
Building windows wheels for Python 3.8 requires Microsoft Visual Studio 2022.
Get it with "Visual Studio 2017":
https://visualstudio.microsoft.com/vs/
Or with "Visual Studio 2019":
https://visualstudio.microsoft.com/vs/
Or with "Visual Studio 2022":
https://visualstudio.microsoft.com/vs/
********************************************************************************
----------------------------------------
ERROR: Failed building wheel for opencv-contrib-python
Running setup.py clean for opencv-contrib-python
Failed to build opencv-contrib-python
ERROR: Could not build wheels for opencv-contrib-python which use PEP 517 and cannot be installed directly
我运行这个命令，它解决了我的问题：
pip install --upgrade pip setuptools wheel
然后 运行 指定版本：
pip install -U opencv-python==4.5.5.62