Cesium Unreal Packaging Error CesiumRuntime

Cesium for Unreal
1

Help for this packaging error while build for windows

UATHelper: Packaging (Windows): BUILD SUCCESSFUL
UATHelper: Packaging (Windows): Setting up ProjectParams for D:\PTVI\Mining3DMapUnreal\Unreal Project\MineVISPERA3D\MineVISPERA3D.uproject
UATHelper: Packaging (Windows): ********** BUILD COMMAND STARTED **********
UATHelper: Packaging (Windows): Running: C:\Program Files\Epic Games\UE_5.6\Engine\Binaries\ThirdParty\DotNet\8.0.300\win-x64\dotnet.exe “C:\Program Files\Epic Games\UE_5.6\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll” MineVISPERA3D Win64 Shipping -Project=“D:\PTVI\Mining3DMapUnreal\Unreal Project\MineVISPERA3D\MineVISPERA3D.uproject” -Manifest=“D:\PTVI\Mining3DMapUnreal\Unreal Project\MineVISPERA3D\Intermediate\Build\Manifest.xml” -remoteini=“D:\PTVI\Mining3DMapUnreal\Unreal Project\MineVISPERA3D” -skipdeploy -distribution -architecture=x64 -log=“C:\Users\MSI GS66\AppData\Roam
ing\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.6\UBA-MineVISPERA3D-Win64-Shipping.txt”
UATHelper: Packaging (Windows): Log file: C:\Users\MSI GS66\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.6\UBA-MineVISPERA3D-Win64-Shipping.txt
UATHelper: Packaging (Windows): Creating makefile for MineVISPERA3D (no existing makefile)
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\VaRestReb7468bf70331V16\Source\VaRestEditor\VaRestEditor.Build.cs(5,14): error CS0101: The namespace ‘’ already contains a definition for ‘VaRestEditor’
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\VaRestReb7468bf70331V16\Source\VaRest\VaRest.Build.cs(7,15): error CS0101: The namespace ‘UnrealBuildTool.Rules’ already contains a definition for ‘VaRest’
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\VaRestReb7468bf70331V16\Source\VaRestEditor\VaRestEditor.Build.cs(7,9): error CS0111: Type ‘VaRestEditor’ already defines a member called ‘VaRestEditor’ with the same parameter types
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\VaRestReb7468bf70331V16\Source\VaRest\VaRest.Build.cs(9,10): error CS0111: Type ‘VaRest’ already defines a member called ‘VaRest’ with the same parameter types
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\Cesiumfo4a28c7d2eeceV9\Source\CesiumEditor\CesiumEditor.Build.cs(123,31): warning CS0618: ‘EngineIncludeOrderVersion.Unreal5_2’ is obsolete: ‘The Unreal 5.2 include order is unsupported.’
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\Cesiumfo4a28c7d2eeceV9\Source\CesiumRuntime\CesiumRuntime.Build.cs(154,9): warning CS0618: ‘ModuleRules.ShadowVariableWarningLevel’ is obsolete: ‘Deprecated in UE5.6 - Replace with ModuleRules.CppCompileWarningSettings.ShadowVariableWarningLevel’
UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\Cesiumfo4a28c7d2eeceV9\Source\CesiumRuntime\CesiumRuntime.Build.cs(155,31): warning CS0618: ‘EngineIncludeOrderVersion.Unreal5_4’ is obsolete: ‘The Unreal 5.4 include order is deprecated and will be unsupported in 5.7.’
UATHelper: Packaging (Windows): Available x64 toolchains (1):
UATHelper: Packaging (Windows): * C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.44.35207
UATHelper: Packaging (Windows): (Family=14.44.35207, FamilyRank=1, Version=14.44.35214, HostArchitecture=x64, ReleaseChannel=Preview, Architecture=x64)
UATHelper: Packaging (Windows): Visual Studio 2022 compiler version 14.44.35214 is not a preferred version. Please use the latest preferred version 14.38.33130
UATHelper: Packaging (Windows): Expecting to find a type to be declared in a module rules named ‘CesiumRuntime’ in ‘Unknown Assembly’. This type must derive from the ‘ModuleRules’ type defined by UnrealBuildTool.
UATHelper: Packaging (Windows): Result: Failed (RulesError)
UATHelper: Packaging (Windows): Total execution time: 2.46 seconds
UATHelper: Packaging (Windows): Took 2.61s to run dotnet.exe, ExitCode=8
UATHelper: Packaging (Windows): UnrealBuildTool failed. See log for more details. (C:\Users\MSI GS66\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.6\UBA-MineVISPERA3D-Win64-Shipping.txt)
UATHelper: Packaging (Windows): AutomationTool executed for 0h 0m 5s
UATHelper: Packaging (Windows): AutomationTool exiting with ExitCode=8 (8)
UATHelper: Packaging (Windows): BUILD FAILED
LogStreaming: Display: FlushAsyncLoading(357): 1 QueuedPackages, 0 AsyncPackages
PackagingResults: Error: Unknown Error

The item that makes this an error maybe on this line:

UATHelper: Packaging (Windows): Expecting to find a type to be declared in a module rules named ‘CesiumRuntime’ in ‘Unknown Assembly’. This type must derive from the ‘ModuleRules’ type defined by UnrealBuildTool.

Please help me

Thank you community

2

Hi @widhiyanto, welcome to the community!

That’s a strange error, and I’m not quite sure what to make of it. But I think it could be relevant that there are earlier errors that appear unrelated to Cesium for Unreal. It might be worth fixing those first, and see if it helps. Specifically:

UATHelper: Packaging (Windows): C:\Program Files\Epic Games\UE_5.6\Engine\Plugins\Marketplace\VaRestReb7468bf70331V16\Source\VaRestEditor\VaRestEditor.Build.cs(5,14): error CS0101: The namespace ‘’ already contains a definition for ‘VaRestEditor’

3

Hi @Kevin_Ring, thank you for reaching out. Already solved for this issue. I only need to put the plugins from Unreal Engine into my project folder/Plugins.

Hope this can help the other as well

Thank you

4

Thanks for the info @widhiyanto. Usually, it’s only necessary to put the plugin in your project’s Plugins folder if you’re using a custom build of Unreal Engine. Is that your situation? I’m glad to hear you got it to work in any case.