安装pylearn2，一直报“failed with exit status 2”这个错，咋回事呢……

Question

C:\Users\Administrator>cd/d G:\Documents\GitHub\pylearn2

G:\Documents\GitHub\pylearn2>python setup.py install
C:\ProgramData\Anaconda3\lib\site-packages\setuptools\dist.py:475: UserWarning: Normalizing '0.1dev' to '0.1.dev0'
  normalized_version,
running install
Because Pylearn2 is under heavy development, we generally do not advice using the `setup.py install` command. Please consider using the `setup.py develop` command instead for the following reasons:

1. Using `setup.py install` creates a copy of the Pylearn2 source code in your Python installation path. In order to update Pylearn2 afterwards you will need to rerun `setup.py install` (!). Simply using `git pull` to update your local copy of Pylearn2 code will not suffice.

2. When using `sudo` to install Pylearn2, all files, including the tutorials, will be copied to a directory owned by root. Not only is running tutorials as root unsafe, it also means that all Pylearn2-related environment variables which were defined for the user will be unavailable.

Pressing enter will continue the installation of Pylearn2 in `develop` mode instead. Note that this means that you need to keep this folder with the Pylearn2 code in its current location. If you know what you are doing, and are very sure that you want to install Pylearn2 using the `install` command instead, please type `install`.

Installation mode: [develop]/install/cancel:
running develop
running egg_info
writing pylearn2.egg-info\PKG-INFO
writing dependency_links to pylearn2.egg-info\dependency_links.txt
writing requirements to pylearn2.egg-info\requires.txt
writing top-level names to pylearn2.egg-info\top_level.txt
reading manifest file 'pylearn2.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'pylearn2.egg-info\SOURCES.txt'
running build_ext
skipping 'pylearn2/utils\_window_flip.c' Cython extension (up-to-date)
building 'pylearn2.utils._window_flip' extension
G:\software\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.23.28105\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MT -IC:\ProgramData\Anaconda3\lib\site-packages\numpy\core\include -IC:\ProgramData\Anaconda3\include -IC:\ProgramData\Anaconda3\include "-IG:\software\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.23.28105\ATLMFC\include" "-IG:\software\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.23.28105\include" /Tcpylearn2/utils\_window_flip.c /Fobuild\temp.win-amd64-3.7\Release\pylearn2/utils\_window_flip.obj
_window_flip.c
C:\ProgramData\Anaconda3\include\pyconfig.h(59): fatal error C1083: 无法打开包括文件: “io.h”: **No such file or directory
error: command 'G:\\software\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.23.28105\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2
```**