Unity Build (IL2CPP)
Start-UnityEditor -Project . -Version 2018.3.13f1 -ExecuteMethod Microsoft.MixedReality.Toolkit.Build.Editor.UnityPlayerBuildTools.StartCommandLineBuild -BuildTarget WSAPlayer -Wait -BatchMode
MSBuild (IL2CPP C++ build)
"C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\MSBuild\Current\Bin\MSBuild.exe" Builds/WSAPlayer/UnitySample.sln /p:PlatformToolset=v142;Configuration=Release;Platform=x64;AppxBundle=Always;AppxBundlePlatforms=x64
appx output at
Builds\WSAPlayer\AppPackages\UnitySample\UnitySample_1.0.4.0_Test>