title: C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.29.30133\\bin\\HostX86\\x86\\cl.exe' failed with exit status 2
body: <p>I am trying to pack py code with  cython, however when I am running <code>python setup.py build_ext --inplace</code>, command prompt shows:</p>
  <pre><code>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\\BuildTools\\VC\\Tools\\MSVC\\14.29.30133\\bin\\HostX86\\x86\\cl.exe' failed with exit status 2
  </code></pre>
  <p>I do have Visual Studio(2017 and 2019) and Build Tools as well; In the command prompt I did:</p>
  <pre><code>set LIB=C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt
  set INCLUDE=C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt
  </code></pre>
  <p>before running python setup.py, also tried to run in the VS Studio Administrator: Windowds PowerShell and still the same issue.</p>
  <p>And also when I am trying to run <code>%VS140COMNTOOLS%vsvars32.bat</code>command prompt shows:</p>
  <pre><code>ERROR: Cannot determine the location of the VS Common Tools folder.
  </code></pre>