Unreal Engine 4 is available for Win10 UWP app dev now

here is my new problem Validation error reading XML schema from XDK. The ‘Publisher’ attribute is invalid - The value ‘rileytowe’ is invalid according to its datatype ‘Error’ - The Pattern constraint failed.
MainFrameActions: Packaging (UWP (x86-32bit)): UnrealBuildTool: Writing PRI config file to F: est xbox\VehicleGame 4.12 - 2\Intermediate\Deploy\priconfig.xml …
MainFrameActions: Packaging (UWP (x86-32bit)): UnrealBuildTool: Successfully Completed
MainFrameActions: Packaging (UWP (x86-32bit)): UnrealBuildTool: Microsoft (R) MakePRI Tool version 10.0.10011.16384
MainFrameActions: Packaging (UWP (x86-32bit)): UnrealBuildTool: Copyright (C) 2013 Microsoft. All rights reserved.
MainFrameActions: Packaging (UWP (x86-32bit)): UnrealBuildTool:
MainFrameActions: Packaging (UWP (x86-32bit)): UnrealBuildTool: MakePri: error 0x80080204: Appx manifest not found or is invalid. Please ensure well-formed manifest file is present. Or specify an index name with /in switch.