查找UEBuildWindows.cs文件，里面记录了此版本的UE4可以用哪个版本的VS编译

比如

4.19.1版本

public enum WindowsCompiler
{/// <summary>/// Use the default compiler. A specific value will always be used outside of configuration classes./// </summary>Default,/// <summary>/// Visual Studio 2013 (Visual C++ 12.0)/// </summary>[Obsolete("UE4 does not support building Visual Studio 2013 targets from the 4.16 release onwards.")]VisualStudio2013,/// <summary>/// Visual Studio 2015 (Visual C++ 14.0)/// </summary>VisualStudio2015,/// <summary>/// Visual Studio 2017 (Visual C++ 15.0)/// </summary>VisualStudio2017,
}

4.9版本

public enum WindowsCompiler
{/// Visual Studio 2012 (Visual C++ 11.0). No longer supported for building on Windows, but required for other platform toolchains.VisualStudio2012,/// Visual Studio 2013 (Visual C++ 12.0)VisualStudio2013,/// Visual Studio 2015 (Visual C++ 14.0)VisualStudio2015,
}