C/C++ and MicroPython SDK for Raspberry Pi Pico on Windows

Very good guide. Unfortunately, I had the same errors as Zichee mentioned.

After I put C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\bin\Hostx64\x64 in path, I got this error:

[build] NMAKE : fatal error U1077: 'echo' : return code '0x1'
[build] Stop.
[build] NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\bin\Hostx64\x64\nmake.exe"' : return code '0x2'
[build] Stop.
[build] NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\bin\Hostx64\x64\nmake.exe"' : return code '0x2'
[build] Stop.
[build] Build finished with exit code 2

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