Nuitka tries to convert Python to C, but says C compiler not found

nuitka --recurse-none main.py

scons:warning:No version of Visual Studio compiler found-C/C++ compilers most likely not set correctly
File "C:\Users\taichi\Anaconda3\lib\site-packages\nuitka\build\SingleExe.scons", line 499, createEnvironment
Error, cannot locate continuous C compiler.You have the following options:

a) If a sustainable Visual Studio version is installed, it will not be located
   automatically, unless you install pywin32 for the Python installation
   below "C:\Users\taichi\Anaconda3".

b) Make it find Visual Studio without registry execute from Start Menu
   the 'Visual Studio Command Prompt' or "vcvarsall.bat". That will add
   Visual Studio to the "PATH". And it will be detected.

c) Install MinGW64 to "C:\MinGW64" or "\MinGW", where then is automatically
   detected or add to PATH before executing Nuitka. But be sure to pick the
   proper variant (32/64 bits, your Python arch is'x86_64'), or else crypto errors
   Will be down.

Normal MinGW will not work!MinGW64 does not mean 64 bits, just better
Windows compatibility.
Cygwin based gcc will not work.
MSYS2 based gcc will not work.

 pip install pywin32

Requirement already satified: pywin32 inc:\users\taichi\anaconda3\lib\site-packages(223)