运行时错误：必须安装 CMake 才能构建以下扩展：dlib

Question

我已经通过

pip install cmake

安装了 CMake 并尝试安装

face_recognition

，但它仍然给我一个运行时错误。我正在使用“Python 3.7.3，x32”

我也尝试通过

dlib

安装

pip install dlib

，因为这是我无法安装

face_recognition

的原因之一。

C:\Users\user>python -m pip install cmake
Requirement already satisfied: cmake in c:\users\user\appdata\roaming\python\python37\site-packages (3.14.4)

C:\Users\user>python -m pip install dlib
Collecting dlib
  Using cached https://files.pythonhosted.org/packages/05/57/e8a8caa3c89a27f80bc78da39c423e2553f482a3705adc619176a3a24b36/dlib-19.17.0.tar.gz
Installing collected packages: dlib
  Running setup.py install for dlib ... error
    ERROR: Complete output from command 'C:\Python\Python37\python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\\Users\\user\\AppData\\Local\\Temp\\pip-install-24vk6act\\dlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\user\AppData\Local\Temp\pip-record-yf2kdjpx\install-record.txt' --single-version-externally-managed --compile:
    ERROR: running install
    running build
    running build_py
    package init file 'dlib\__init__.py' not found (or not a regular file)
    running build_ext
    Traceback (most recent call last):
      File "C:\Users\user\AppData\Local\Temp\pip-install-24vk6act\dlib\setup.py", line 120, in get_cmake_version
        out = subprocess.check_output(['cmake', '--version'])
      File "C:\Python\Python37\lib\subprocess.py", line 395, in check_output
        **kwargs).stdout
      File "C:\Python\Python37\lib\subprocess.py", line 472, in run
        with Popen(*popenargs, **kwargs) as process:
      File "C:\Python\Python37\lib\subprocess.py", line 775, in __init__
        restore_signals, start_new_session)
      File "C:\Python\Python37\lib\subprocess.py", line 1178, in _execute_child
        startupinfo)
    FileNotFoundError: [WinError 2] The system cannot find the file specified

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\user\AppData\Local\Temp\pip-install-24vk6act\dlib\setup.py", line 261, in <module>
        'Topic :: Software Development',
      File "C:\Users\user\AppData\Roaming\Python\Python37\site-packages\setuptools\__init__.py", line 145, in setup
        return distutils.core.setup(**attrs)
      File "C:\Python\Python37\lib\distutils\core.py", line 148, in setup
        dist.run_commands()
      File "C:\Python\Python37\lib\distutils\dist.py", line 966, in run_commands
        self.run_command(cmd)
      File "C:\Python\Python37\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Users\user\AppData\Roaming\Python\Python37\site-packages\setuptools\command\install.py", line 61, in run
        return orig.install.run(self)
      File "C:\Python\Python37\lib\distutils\command\install.py", line 545, in run
        self.run_command('build')
      File "C:\Python\Python37\lib\distutils\cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "C:\Python\Python37\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Python\Python37\lib\distutils\command\build.py", line 135, in run
        self.run_command(cmd_name)
      File "C:\Python\Python37\lib\distutils\cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "C:\Python\Python37\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Users\user\AppData\Local\Temp\pip-install-24vk6act\dlib\setup.py", line 129, in run
        cmake_version = self.get_cmake_version()
      File "C:\Users\user\AppData\Local\Temp\pip-install-24vk6act\dlib\setup.py", line 125, in get_cmake_version
        "\n*******************************************************************\n")
    RuntimeError:
    *******************************************************************
     CMake must be installed to build the following extensions: dlib
    *******************************************************************

    ----------------------------------------
ERROR: Command "'C:\Python\Python37\python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\\Users\\user\\AppData\\Local\\Temp\\pip-install-24vk6act\\dlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\user\AppData\Local\Temp\pip-record-yf2kdjpx\install-record.txt' --single-version-externally-managed --compile" failed with error code 1 in C:\Users\user\AppData\Local\Temp\pip-install-24vk6act\dlib\

Answer 1

从这里

下载并安装 dlib Wheel

然后

pip install face_recognition

---

• pip install cmake

• 在 visual studio 中，各个组件 选项卡，编译器下的用于 Cmake 的 Visual C++ 工具复选框，构建工具 和运行时部分
• 在 Visual Studio 命令提示符下运行，

  pip install face_recognition

来源

Answer 2

有效的是... 收到很多红色错误后，我运行以下

1. conda install -c conda-forge dlib

2. pip install cmake

3. pip install face_recognition

即使错误也让我重新安装

VS Code for c++

。但上面的顺序安装是有效的。

Python version was 3.8

Answer 3

尝试使用 conda 安装 dlib

conda install -c conda-forge dlib

Answer 4

对我来说，没有一个解决方案不起作用。然后，我手动下载了face_recognition包中的所有库（例如“pip install dlib==19.7”，“pip install Click”。最后，我使用此命令“pip install --no-deps face_recognition”安装了人脸识别

Answer 5

首先下载并安装 Visual Studio 2019 社区版。 确保您勾选了使用 c++ 进行桌面开发框。 vs 2019 的开发者命令提示符 安装后将会出现 vs 2019 的开发者命令提示符 启动菜单中的 cmd 文件打开它并只需输入 dlib 的安装代码即可。