Unreal Engine 4 is available for Win10 UWP app dev now

@ - With 4.16.x I’m having a UWP64 Debug build problem that wasn’t present in the 4.15.x version:



22>Parameter name: path
22>   at System.IO.Path.GetFullPathInternal(String path)
22>   at System.IO.Path.GetFullPath(String path)
22>   at UnrealBuildTool.DirectoryReference..ctor(String InPath) in E:\UEUWP\MICROSOFT_UWP_UNREAL\Engine\Source\Programs\UnrealBuildTool\System\DirectoryReference.cs:line 21
22>   at UnrealBuildTool.UWPManifestGenerator.CreateManifest(UnrealTargetPlatform TargetPlatform, String InOutputPath, String InIntermediatePath, FileReference InProjectFile, String InProjectDirectory, List`1 InTargetConfigs, List`1 InExecutables, IEnumerable`1 InWinMDReferences) in E:\UEUWP\MICROSOFT_UWP_UNREAL\Engine\Source\Programs\UnrealBuildTool\UWP\ManifestGenerator.cs:line 688
22>   at UnrealBuildTool.UWPDeploy.PrepForUATPackageOrDeploy(FileReference ProjectFile, String ProjectName, String ProjectDirectory, List`1 TargetConfigurations, List`1 ExecutablePaths, String EngineDirectory, Boolean bForDistribution, String CookFlavor, Boolean bIsDataDeploy) in E:\UEUWP\MICROSOFT_UWP_UNREAL\Engine\Source\Programs\UnrealBuildTool\UWP\UWPDeploy.cs:line 196
22>   at UnrealBuildTool.UWPDeploy.PrepTargetForDeployment(UEBuildDeployTarget InTarget) in E:\UEUWP\MICROSOFT_UWP_UNREAL\Engine\Source\Programs\UnrealBuildTool\UWP\UWPDeploy.cs:line 274
22>   at UnrealBuildTool.UniversalWindowsPlatform.Deploy(UEBuildDeployTarget Target) in E:\UEUWP\MICROSOFT_UWP_UNREAL\Engine\Source\Programs\UnrealBuildTool\UWP\UEBuildUWP.cs:line 233
22>   at UnrealBuildTool.UnrealBuildTool.RunUBT(BuildConfiguration BuildConfiguration, String] Arguments, FileReference ProjectFile) in E:\UEUWP\MICROSOFT_UWP_UNREAL\Engine\Source\Programs\UnrealBuildTool\System\UnrealBuildTool.cs:line 1623
22>Total build time: 427.02 seconds (Local executor: 406.20 seconds)


This has been reported in GitHub too. Do you have any suggestions I can try?

I’m studying the build code now but hoping that you can point me in the right direction.

[EDIT]
When I do get a build and while running the debugger a missing project is reported: