Hi, after having troubles building my current project into Universal windows 10 app, I tried in an empty project. Still can't build. I got this error : I tried with Unity 5.6.1f1, XAML , .NET scrpit backend. I have Windows 10 SDK installed and visual studio 2015 update 3 with all UWP tools, the metro support for unity installed. I tried to repair visual studio with no effect. Does anyone have an idea? Update : It seems that the last windows SDK is the problem. when using a older SDK, it build.