I am trying to test a UWP project with xUnit. On create instance of Windows.ApplicationModel.Resources.ResourceLoader(), I get exception: Unsupported MRT profile type. (Exception from HRESULT: 0x80073B20) Example method to test: public int Sum(int a, int b) { var loader = new Windows.ApplicationModel.Resources.ResourceLoader(); return a + b; } With MsTest test [...] read more