I try to create a dedicated server with this guide. But on the packaging step I have that error:
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UATHelper: Packaging (Windows (64-bit)): [445/450] Link MyProject-ExampleDeviceProfileSelector.lib
UATHelper: Packaging (Windows (64-bit)): [446/450] Link MyProject-OnlineSubsystemNull.lib
UATHelper: Packaging (Windows (64-bit)): [447/450] Link MyProject-CharacterAI.lib
UATHelper: Packaging (Windows (64-bit)): [448/450] Link MyProject-WindowsMoviePlayer.lib
UATHelper: Packaging (Windows (64-bit)): ERROR: UBT ERROR: Failed to produce item: C:\Program Files\Epic Games\UnrealEngine\Engine\Plugins\Media\WmfMedia\Binaries\Win64\MyProject-WmfMedia.lib
PackagingResults: Error: UBT ERROR: Failed to produce item: C:\Program Files\Epic Games\UnrealEngine\Engine\Plugins\Media\WmfMedia\Binaries\Win64\MyProject-WmfMedia.lib
UATHelper: Packaging (Windows (64-bit)): Total build time: 1447,25 seconds (Local executor: 0,00 seconds)
UATHelper: Packaging (Windows (64-bit)): Took 1447,5741602s to run UnrealBuildTool.exe, ExitCode=5
UATHelper: Packaging (Windows (64-bit)): ERROR: Command failed (Result:5): C:\Program Files\Epic Games\UnrealEngine\Engine\Binaries\DotNET\UnrealBuildTool.exe MyProject Win64 Development -Project=D:\Development\Multiplayer\MyProject\MyProject.uproject D:\Development\Multiplayer\MyProject\MyProject.uproject -NoUBTMakefiles -remoteini="D:\Development\Multipl
ayer\MyProject" -skipdeploy -noxge -NoHotReload -ignorejunk. See logfile for details: 'UnrealBuildTool-2018.05.29-14.00.31.txt'
UATHelper: Packaging (Windows (64-bit)): (see C:\Program Files\Epic Games\UnrealEngine\Engine\Programs\AutomationTool\Saved\Logs\UAT_Log.txt for full exception trace)
PackagingResults: Error: Command failed (Result:5): C:\Program Files\Epic Games\UnrealEngine\Engine\Binaries\DotNET\UnrealBuildTool.exe MyProject Win64 Development -Project=D:\Development\Multiplayer\MyProject\MyProject.uproject D:\Development\Multiplayer\MyProject\MyProject.uproject -NoUBTMakefiles -remoteini="D:\Development\Multiplayer\MyProject" -skipde
ploy -noxge -NoHotReload -ignorejunk. See logfile for details: 'UnrealBuildTool-2018.05.29-14.00.31.txt'
UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=5 (5)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Error
WindowsMoviePlayer plugin is enabled, if I disable it anyway have that error.