Dear User,
If you re-installed your Visual Studio or updated it to a new version then you may loose the vcvarsall.bat file and here are quick steps to restore it:
1. Run the Visual Studio Installer
2. See the screenshot below to find the package you need
3. Click install/modify

After installed you will find it there (depending on a drive you installed your Visual Studio):
D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build
Thank you and see you ;)

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