UE5 Build package - Unknown Error

Stanyck.Andersen · March 31, 2025, 8:05pm

Hello everyone,

When I’m trying to build my project in UE5, I got the following error. I don’t know what the problem is, can anyone help me please?

I have installed UE5 5.3.2 , Visual Studio 2022

LogUObjectHash: Compacting FUObjectHashTables data took 1.54ms
LogTurnkeySupport: Project requires temp target (SunPosition plugin is enabled)
LogLauncherProfile: Unable to use promoted target - ../../../../../Unreal Engine projects/Cabling3D/Binaries/Win64/UnrealGame-Win64-Shipping.target does not exist.
LogMonitoredProcess: Running Serialized UAT: [ cmd.exe /c ““R:/Epic Games/UE_5.3/Engine/Build/BatchFiles/RunUAT.bat” -ScriptsForProject=“R:/Unreal Engine projects/Cabling3D/Cabling3D.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=50894 -project=“R:/Unreal Engine projects/Cabling3D/Cabling3D.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“R:/Unreal Engine projects/Cabling3D/Cabling3D.uproject” -unrealexe=“R:\Epic Games\UE_5.3\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -platform=Win64 -installed -stage
-archive -package -build -pak -iostore -compressed -prereqs -archivedirectory=“R:/UE5 Export” -distribution -clientconfig=Shipping -nodebuginfo” -nocompile -nocompileuat ]
UATHelper: Packaging (Windows): Running AutomationTool…
UATHelper: Packaging (Windows): Using bundled DotNet SDK version: 6.0.302
UATHelper: Packaging (Windows): Starting AutomationTool…
UATHelper: Packaging (Windows): Parsing command line: -ScriptsForProject=“R:/Unreal Engine projects/Cabling3D/Cabling3D.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=50894 -project=“R:/Unreal Engine projects/Cabling3D/Cabling3D.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“R:/Unreal Engine projects/Cabling3D/Cabling3D.uproject” -unrealexe=“R:\Epic Games\UE_5.3\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -platform=Win64 -installed -stage -archive -package -build -pak -iostore -compressed -prereqs -archiv
edirectory=“R:/UE5 Export” -distribution -clientconfig=Shipping -nodebuginfo -nocompile -nocompileuat
UATHelper: Packaging (Windows): Initializing script modules…
UATHelper: Packaging (Windows): Total script module initialization time: 0.15 s.
UATHelper: Packaging (Windows): Executing commands…
UATHelper: Packaging (Windows): Installed Sdk validity:
UATHelper: Packaging (Windows): Win64: (Status=Valid, MinAllowed_Sdk=10.0.00000.0, MaxAllowed_Sdk=10.9.99999.0, Current_Sdk=10.0.22621.0, Allowed_AutoSdk=10.0.18362.0, Current_AutoSdk=, Flags=“InstalledSdk_ValidVersionExists”)
UATHelper: Packaging (Windows): Scanning for envvar changes…
UATHelper: Packaging (Windows): … done!
UATHelper: Packaging (Windows): Cleaning Temp Paths…
UATHelper: Packaging (Windows): BUILD SUCCESSFUL
UATHelper: Packaging (Windows): Setting up ProjectParams for R:\Unreal Engine projects\Cabling3D\Cabling3D.uproject
UATHelper: Packaging (Windows): ********** BUILD COMMAND STARTED **********
UATHelper: Packaging (Windows): Running: R:\Epic Games\UE_5.3\Engine\Binaries\ThirdParty\DotNet\6.0.302\windows\dotnet.exe “R:\Epic Games\UE_5.3\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll” Cabling3D Win64 Shipping -Project=“R:\Unreal Engine projects\Cabling3D\Cabling3D.uproject” -Manifest=“R:\Unreal Engine projects\Cabling3D\Intermediate\Build\Manifest.xml” -remoteini=“R:\Unreal Engine projects\Cabling3D” -skipdeploy -distribution -log=“C:\Users\stanyck\AppData\Roaming\Unreal Engine\AutomationTool\Logs\R+Epic+Games+UE_5.3\UBT-Cabling3D-Win64-Shipping.txt”
UATHelper: Packaging (Windows): Log file: C:\Users\stanyck\AppData\Roaming\Unreal Engine\AutomationTool\Logs\R+Epic+Games+UE_5.3\UBT-Cabling3D-Win64-Shipping.txt
UATHelper: Packaging (Windows): Creating makefile for Cabling3D (manifest ‘R:\Unreal Engine projects\Cabling3D\Intermediate\Build\Manifest.xml’ not found)
UATHelper: Packaging (Windows): Writing manifest to R:\Unreal Engine projects\Cabling3D\Intermediate\Build\Manifest.xml
UATHelper: Packaging (Windows): Building Cabling3D…
UATHelper: Packaging (Windows): Using Visual Studio 2022 14.43.34809 toolchain (C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808) and Windows 10.0.22621.0 SDK (C:\Program Files (x86)\Windows Kits\10).
UATHelper: Packaging (Windows): [Upgrade]
UATHelper: Packaging (Windows): [Upgrade] Using backward-compatible build settings. The latest version of UE sets the following values by default, which may require code changes:
UATHelper: Packaging (Windows): [Upgrade] CppStandard = CppStandardVersion.Default => Updates C++ Standard to C++20 (Previously: CppStandardVersion.Cpp17).
UATHelper: Packaging (Windows): [Upgrade] WindowsPlatform.bStrictConformanceMode = true => Updates MSVC strict conformance mode to true (Previously: false).
UATHelper: Packaging (Windows): [Upgrade] Suppress this message by setting ‘DefaultBuildSettings = BuildSettingsVersion.V4;’ in Cabling3D.Target.cs, and explicitly overriding settings that differ from the new defaults.
UATHelper: Packaging (Windows): [Upgrade]
UATHelper: Packaging (Windows): Determining max actions to execute in parallel (6 physical cores, 12 logical cores)
UATHelper: Packaging (Windows): Executing up to 6 processes, one per physical core
UATHelper: Packaging (Windows): ------ Building 4 action(s) started ------
UATHelper: Packaging (Windows): [1/4] Compile [x64] SharedPCH.Core.Cpp17.cpp
UATHelper: Packaging (Windows): Detected compiler newer than Visual Studio 2022, please update min version checking in WindowsPlatformCompilerSetup.h
UATHelper: Packaging (Windows): R:\Epic Games\UE_5.3\Engine\Source\Runtime\Core\Public\Experimental\ConcurrentLinearAllocator.h(31): error C4668: ‘__has_feature’ is not defined as a preprocessor macro, replacing with ‘0’ for ‘#if/#elif’
UATHelper: Packaging (Windows): R:\Epic Games\UE_5.3\Engine\Source\Runtime\Core\Public\Experimental\ConcurrentLinearAllocator.h(31): error C4067: unexpected tokens following preprocessor directive - expected a newline
UATHelper: Packaging (Windows): Total time in Parallel executor: 2.69 seconds
UATHelper: Packaging (Windows): Total execution time: 4.14 seconds
UATHelper: Packaging (Windows): Took 4,25s to run dotnet.exe, ExitCode=6
UATHelper: Packaging (Windows): UnrealBuildTool failed. See log for more details. (C:\Users\stanyck\AppData\Roaming\Unreal Engine\AutomationTool\Logs\R+Epic+Games+UE_5.3\UBT-Cabling3D-Win64-Shipping.txt)
UATHelper: Packaging (Windows): AutomationTool executed for 0h 0m 6s
UATHelper: Packaging (Windows): AutomationTool exiting with ExitCode=6 (6)
UATHelper: Packaging (Windows): BUILD FAILED
PackagingResults: Error: Unknown Error

Stanyck.Andersen · April 1, 2025, 7:34pm

Finally I’ve got a solution!
It was the UnrealBuildTool and Visual Studio 2022. See my logfile Row 6 from the bottum.

So, what I have done was as follow:

Open Visual Studio Installer and go to “Modify”.
Go to “Individual components” and type in “msvc 2022 86”. Check v14.36-17.6 and install it.
See for your correct version on the C - program fils - microsoft visual studio 2022 - community - VC - Tools - MSVC. There should be a folder named: 14.36.32532
Now, go to %AppData% - Roaming - Unreal Engine - UnrealBuildTool. Here you will fine a xml file like “BuildConfiguration.xml”. Open it.
Write it correctly with your version from point 3. That will looks like this. Make sure you type everything and use your version.

Save the file and restart UE5 and try again to “windows packaging”. This works for me.