无法在 Windows 上使用 pip 安装 quadprog

如何解决无法在 Windows 上使用 pip 安装 quadprog

Python 3.7.4、Windows 10、anaconda 环境，版本 1.7.2 我需要安装 quadprog 模块，但每次安装都失败并显示以下消息：

PS C:\Users\JoHn> pip install quadprog
Collecting quadprog
  Using cached https://files.pythonhosted.org/packages/31/c7/833d7b5b53fff5b9042803aa8096207d8e038ca42052f074d4ad8cddbfc5/quadprog-0.1.8.tar.gz
Requirement already satisfied: Cython in c:\programdata\anaconda3\lib\site-packages (from quadprog) (0.29.13)
Building wheels for collected packages: quadprog
  Building wheel for quadprog (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'C:\ProgramData\Anaconda3\python.exe' -u -c 'import sys,setuptools,tokenize; sys.argv[0] = '"'"'C:\\Users\\JoHn\\AppData\\Local\\Temp\\pip-install-kdkftqzr\\quadprog\\setup.py'"'"'; __file__='"'"'C:\\Users\\JoHn\\AppData\\Local\\Temp\\pip-install-kdkftqzr\\quadprog\\setup.py'"'"';f=getattr(tokenize,'"'"'open'"'"',open)(__file__);code=f.read().replace('"'"'\r\n'"'"','"'"'\n'"'"');f.close();exec(compile(code,__file__,'"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\JoHn\AppData\Local\Temp\pip-wheel-ttptb_yt' --python-tag cp37
       cwd: C:\Users\JoHn\AppData\Local\Temp\pip-install-kdkftqzr\quadprog\
  Complete output (13 lines):
  running bdist_wheel
  running build
  running build_ext
  skipping 'quadprog\quadprog.cpp' Cython extension (up-to-date)
  building 'quadprog' extension
  creating build
  creating build\temp.win-amd64-3.7
  creating build\temp.win-amd64-3.7\Release
  creating build\temp.win-amd64-3.7\Release\quadprog
  C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -Iquadprog -IC:\ProgramData\Anaconda3\include -IC:\ProgramData\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include" "-IC:\Program Files (x86)\Windows Kits\NETFxsdk\4.8\include\um" /EHsc /Tpquadprog\quadprog.cpp /Fobuild\temp.win-amd64-3.7\Release\quadprog\quadprog.obj
  quadprog.cpp
  C:\ProgramData\Anaconda3\include\pyconfig.h(59): Fatal error C1083: Cannot open include file: 'io.h': No such file or directory
  error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.24.28314\\bin\\HostX86\\x64\\cl.exe' Failed with exit status 2
  ----------------------------------------
  ERROR: Failed building wheel for quadprog
  Running setup.py clean for quadprog
Failed to build quadprog
Installing collected packages: quadprog
  Running setup.py install for quadprog ... error
    ERROR: Command errored out with exit status 1:
     command: 'C:\ProgramData\Anaconda3\python.exe' -u -c 'import sys,'"'"'exec'"'"'))' install --record 'C:\Users\JoHn\AppData\Local\Temp\pip-record-0jwlm42n\install-record.txt' --single-version-externally-managed --compile
         cwd: C:\Users\JoHn\AppData\Local\Temp\pip-install-kdkftqzr\quadprog\
    Complete output (13 lines):
    running install
    running build
    running build_ext
    skipping 'quadprog\quadprog.cpp' Cython extension (up-to-date)
    building 'quadprog' extension
    creating build
    creating build\temp.win-amd64-3.7
    creating build\temp.win-amd64-3.7\Release
    creating build\temp.win-amd64-3.7\Release\quadprog
    C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -Iquadprog -IC:\ProgramData\Anaconda3\include -IC:\ProgramData\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include" "-IC:\Program Files (x86)\Windows Kits\NETFxsdk\4.8\include\um" /EHsc /Tpquadprog\quadprog.cpp /Fobuild\temp.win-amd64-3.7\Release\quadprog\quadprog.obj
    quadprog.cpp
    C:\ProgramData\Anaconda3\include\pyconfig.h(59): Fatal error C1083: Cannot open include file: 'io.h': No such file or directory
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.24.28314\\bin\\HostX86\\x64\\cl.exe' Failed with exit status 2
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'C:\ProgramData\Anaconda3\python.exe' -u -c 'import sys,'"'"'exec'"'"'))' install --record 'C:\Users\JoHn\AppData\Local\Temp\pip-record-0jwlm42n\install-record.txt' --single-version-externally-managed --compile Check the logs for full command output.
PS C:\Users\JoHn>

从我在网上找到的东西来看，听起来我可能需要将我的路径变量指向 io.h 文件，但我不确定这是什么或在哪里。网上大多数类似的问题都是问使用VS Code，但我没有使用VS Code...