为啥我在安装 dlib 时收到此错误“检查日志以获取完整的命令输出”？
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【中文标题】为啥我在安装 dlib 时收到此错误“检查日志以获取完整的命令输出”？【英文标题】：why i'm getting this error "check the logs for full command output" when i'm installing dlib?为什么我在安装 dlib 时收到此错误“检查日志以获取完整的命令输出”？ 【发布时间】：2021-04-07 08:14:13 【问题描述】：我正在尝试在 vertual studio 代码上安装 dlib，但显示以下错误：
Running setup.py install for dlib ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\acer\appdata\local\programs\python\python39\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\setup.py'"'"'; __file__='"'"'C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\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\ACER\AppData\Local\Temp\pip-record-qzdzy48q\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\acer\appdata\local\programs\python\python39\Include\dlib'
cwd: C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\
Complete output (60 lines):
running install
running build
running build_py
package init file 'tools\python\dlib\__init__.py' not found (or not a regular file)
running build_ext
Building extension for Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)]
Invoking CMake setup: 'cmake C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\tools\python -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\build\lib.win-amd64-3.9 -DPYTHON_EXECUTABLE=c:\users\acer\appdata\local\programs\python\python39\python.exe -DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\build\lib.win-amd64-3.9 -A x64'
-- Building for: NMake Makefiles
CMake Error at CMakeLists.txt:5 (message):
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You must use Visual Studio to build a python extension on windows. If you
are getting this error it means you have not installed Visual C++. Note
that there are many flavors of Visual Studio, like Visual Studio for C#
development. You need to install Visual Studio for C++.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\setup.py", line 223, in <module>
setup(
File "c:\users\acer\appdata\local\programs\python\python39\lib\site-packages\setuptools\__init__.py", line 165, in setup
return distutils.core.setup(**attrs)
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\core.py", line 148, in setup
dist.run_commands()
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\dist.py", line 966, in run_commands
self.run_command(cmd)
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "c:\users\acer\appdata\local\programs\python\python39\lib\site-packages\setuptools\command\install.py", line 61, in run
return orig.install.run(self)
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\command\install.py", line 546, in run
self.run_command('build')
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\command\build.py", line 135, in run
self.run_command(cmd_name)
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "c:\users\acer\appdata\local\programs\python\python39\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\setup.py", line 135, in run
self.build_extension(ext)
File "C:\Users\ACER\AppData\Local\Temp\pip-install-iotpp637\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\setup.py", line 172, in build_extension
subprocess.check_call(cmake_setup, cwd=build_folder)
File "c:\users\acer\appdata\local\programs\python\python39\lib\subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', 'C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\tools\\python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\build\\lib.win-amd64-3.9', '-DPYTHON_EXECUTABLE=c:\\users\\acer\\appdata\\local\\programs\\python\\python39\\python.exe', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\build\\lib.win-amd64-3.9', '-A', 'x64']' returned non-zero exit status 1.
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\acer\appdata\local\programs\python\python39\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\setup.py'"'"'; __file__='"'"'C:\\Users\\ACER\\AppData\\Local\\Temp\\pip-install-iotpp637\\dlib_cbdb8998ebb54dee8cad48a70a8a0f3c\\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\ACER\AppData\Local\Temp\pip-record-qzdzy48q\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\acer\appdata\local\programs\python\python39\Include\dlib' Check the logs for full command output.
附加说明：我安装了cmake 并再次尝试但没有任何改变。
【问题讨论】：
请考虑将答案标记为已接受（答案左侧的灰色勾号），如果您觉得有用，请点赞。 【参考方案1】：从您收到的错误消息中可以明显看出错误：
您必须使用 Visual Studio 在 Windows 上构建 Python 扩展。如果 你 收到此错误表示您尚未安装 Visual C++。笔记 有多种 Visual Studio 风格，例如 Visual Studio for C# 发展。您需要安装 Visual Studio for C++。
您需要从here 安装 *Visual Studio for C++ 并重新运行安装，以便构建 Python 的 C++ 扩展。
您可以避免在 dlib package is available 已经编译的地方使用 Anaconda（但目前不适用于 Python 3.9）。
【讨论】：
【参考方案2】：您可以使用以下方法避免安装“Huge”IDE (VS) 或 Anaconda。
许多二进制文件依赖于 Microsoft Visual C++ Redistributable for Visual Studio 2015、2017 和 2019 for Python 3
所以，请尝试使用以下代码来解决它
pip install --upgrade setuptools
如果你没有成功解决这个问题，
那么你可以尝试使用这个链接The latest supported Visual C++ downloads来安装这个问题
【讨论】：
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