PackagingResults: Error: Unknown Error

I’ve been trying to build my project, but its always failing to build, and I’m not sure what is causing it.

LogUObjectHash: Compacting FUObjectHashTables data took 0.77ms

LogTurnkeySupport: Project requires temp target (AnimationWarping plugin is enabled)

LogLauncherProfile: Unable to use promoted target - C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Binaries/Win64/UnrealGame-Win64-Shipping.target does not exist.

LogMonitoredProcess: Running Serialized UAT: [ cmd.exe /c "“D:/Program Files/Epic Games/UE_5.3/Engine/Build/BatchFiles/RunUAT.bat” -ScriptsForProject=“C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Project_Freedom.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=53719 -project=“C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Project_Freedom.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project="C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Project_Freed

om.uproject" -unrealexe=“D:\Program Files\Epic Games\UE_5.3\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -platform=Win64 -installed -stage -archive -package -build -pak -iostore -compressed -prereqs -archivedirectory=“C:/Users/Home/Desktop/Project Freedom/Project Freedom” -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=“C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Project_Freedom.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=53719 -project=“C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Project_Freedom.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“C:/Users/Home/Desktop/Project Freedom/Game_Project/Project_Freedom/Project_Freedom.uproject” -unrealexe="D:\Program Files\Epic Games\UE_5.3\Engine\Binaries\Win6

4\UnrealEditor-Cmd.exe" -platform=Win64 -installed -stage -archive -package -build -pak -iostore -compressed -prereqs -archivedirectory=“C:/Users/Home/Desktop/Project Freedom/Project Freedom” -clientconfig=Shipping -nodebuginfo -nocompile -nocompileuat

UATHelper: Packaging (Windows): Initializing script modules…

UATHelper: Packaging (Windows): Total script module initialization time: 0.30 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=10.0.16299.0, 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 C:\Users\Home\Desktop\Project Freedom\Game_Project\Project_Freedom\Project_Freedom.uproject

UATHelper: Packaging (Windows): ********** BUILD COMMAND STARTED **********

UATHelper: Packaging (Windows): Running: D:\Program Files\Epic Games\UE_5.3\Engine\Binaries\ThirdParty\DotNet\6.0.302\windows\dotnet.exe “D:\Program Files\Epic Games\UE_5.3\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll” Project_Freedom Win64 Shipping -Project=“C:\Users\Home\Desktop\Project Freedom\Game_Project\Project_Freedom\Project_Freedom.uproject” -Manifest=“C:\Users\Home\Desktop\Project Freedom\Game_Project\Project_Freedom\Intermediate\Build\Manifest.xml” -remoteini=“C:\Users\Home\Desktop\Project Freedom\Game_Project\Project_Freedom” -skipdeploy -log="C:\Users\Home\AppData

\Roaming\Unreal Engine\AutomationTool\Logs\D+Program+Files+Epic+Games+UE_5.3\UBT-Project_Freedom-Win64-Shipping.txt"

UATHelper: Packaging (Windows): Log file: C:\Users\Home\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Program+Files+Epic+Games+UE_5.3\UBT-Project_Freedom-Win64-Shipping.txt

UATHelper: Packaging (Windows): Creating makefile for Project_Freedom (no existing makefile)

UATHelper: Packaging (Windows): Total execution time: 1.11 seconds

UATHelper: Packaging (Windows): Microsoft platform targets must be compiled with Visual Studio 2022 17.4 (MSVC 14.34.x) or later for the installed engine. Please update Visual Studio 2022 and ensure no configuration is forcing WindowsTargetRules.Compiler to VisualStudio2019. The current compiler version was detected as: 14.29.30146

UATHelper: Packaging (Windows): Took 1.26s to run dotnet.exe, ExitCode=6

UATHelper: Packaging (Windows): UnrealBuildTool failed. See log for more details. (C:\Users\Home\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Program+Files+Epic+Games+UE_5.3\UBT-Project_Freedom-Win64-Shipping.txt)

UATHelper: Packaging (Windows): AutomationTool executed for 0h 0m 5s

UATHelper: Packaging (Windows): AutomationTool exiting with ExitCode=6 (6)

UATHelper: Packaging (Windows): BUILD FAILED

PackagingResults: Error: Unknown Error

Hi… from your logs

Microsoft platform targets must be compiled with Visual Studio 2022 17.4 (MSVC 14.34.x) or later for the installed engine. Try updating Visual Studio 2022.
Try updating your Visual studio and regenerate program files.

1 Like

Greetings @Firefly959

Welcome to the Unreal Engine Community Forums! In regards to the error I’d start by updating your Visual Studio version and then test it again. I hope this helps! If the issue persists afterward post back here. I’ll monitor the thread.