Compiled 4.17.1 engine code from GitHub does not recognized update 3 in Visual Studio

I am working with a custom version ue4.17.1 using code from VS215 within VS2017,

I am getting these errors that update 3 is required when I already updated the VS 2017

Severity Code Description Project File Line Suppression State
Error C2338 Visual Studio 2015 Update 3 is required to compile on Windows (http://go.microsoft.com/fwlink/?LinkId=691129) ShaderCompileWorker d:\unrealengine\enginebuilds\417\ue_4171_g\engine\source\runtime\core\public\Windows\WindowsPlatformCompilerSetup.h 19

i recompiled 4 times, build, rebuild, and restart, but i still get the same error