NVIDIA GameWorks Integration

Hi, just tried todo a test win64 pack of the flex demo project without making any changes and I get the following error.

UATHelper: Packaging (Windows (64-bit)): ERROR: UBT ERROR: Failed to produce item: C:\Users\Documents\GameWorks\Engine\Plugins\Media\WmfMedia\Binaries\Win64\UE4-WmfMedia-Win64-Shipping.lib
PackagingResults: Error: UBT ERROR: Failed to produce item: C:\Users\Documents\GameWorks\Engine\Plugins\Media\WmfMedia\Binaries\Win64\UE4-WmfMedia-Win64-Shipping.lib
UATHelper: Packaging (Windows (64-bit)): Total build time: 712.30 seconds (Local executor: 0.00 seconds)
UATHelper: Packaging (Windows (64-bit)): Took 712.4387523s to run UnrealBuildTool.exe, ExitCode=5
UATHelper: Packaging (Windows (64-bit)): ERROR: Command failed (Result:5): C:\Users\Documents\GameWorks\Engine\Binaries\DotNET\UnrealBuildTool.exe UE4Game Win64 Shipping -NoUBTMakefiles -remoteini=“C:\Users\Documents\GameWorks\FlexProject” -skipdeploy -noxge -NoHotReload -ignorejunk. See logfile for details: ‘UnrealBuildTool-2018.07.03-
07.55.55.txt’
UATHelper: Packaging (Windows (64-bit)): (see C:\Users\Documents\GameWorks\Engine\Programs\AutomationTool\Saved\Logs\UAT_Log.txt for full exception trace)
PackagingResults: Error: Command failed (Result:5): C:\Users\Documents\GameWorks\Engine\Binaries\DotNET\UnrealBuildTool.exe UE4Game Win64 Shipping -NoUBTMakefiles -remoteini=“C:\Users\Documents\GameWorks\FlexProject” -skipdeploy -noxge -NoHotReload -ignorejunk. See logfile for details: ‘UnrealBuildTool-2018.07.03-07.55.55.txt’
UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=5 (5)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Error

Any ideas?