unknown error while exporting

Development Programming & Scripting
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1

Hi :slight_smile:

I am quite new to UE5 and I want to do VR-walkthroughs for architecture.

Everything is working well, until I try to export the project for Windows.

The error-message I get is this:

LogUObjectHash: Compacting FUObjectHashTables data took 0.34ms
LogTurnkeySupport: Project requires temp target (OpenXR Das Plugin ist aktiviert)
LogLauncherProfile: Unable to use promoted target - ../../../../../../Users/ebbecke/Documents/Unreal Projects/Test/Binaries/Win64/UnrealGame.target does not exist.
LogMonitoredProcess: Running Serialized UAT: [ cmd.exe /c ““C:/Program Files/Epic Games/UE_5.5/Engine/Build/BatchFiles/RunUAT.bat” -ScriptsForProject=“C:/Users/ebbecke/Documents/Unreal Projects/Test/Test.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=50738 -project=“C:/Users/ebbecke/Documents/Unreal Projects/Test/Test.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“C:/Users/ebbecke/Documents/Unreal Projects/Test/Test.uproject” -unrealexe=“C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\Win64\UnrealE
ditor-Cmd.exe” -platform=Win64 -installed -stage -archive -package -build -pak -iostore -compressed -prereqs -archivedirectory=“C:/Users/ebbecke/Desktop/Test 17.04.2025” -clientconfig=Development” -nocompile -nocompileuat ]
LogStreaming: Display: FlushAsyncLoading(363): 1 QueuedPackages, 0 AsyncPackages
UATHelper: Paketerstellung (Windows): Running AutomationTool…
UATHelper: Paketerstellung (Windows): Using bundled DotNet SDK version: 8.0.300
UATHelper: Paketerstellung (Windows): Starting AutomationTool…
UATHelper: Paketerstellung (Windows): Parsing command line: -ScriptsForProject=“C:/Users/ebbecke/Documents/Unreal Projects/Test/Test.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=50738 -project=“C:/Users/ebbecke/Documents/Unreal Projects/Test/Test.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“C:/Users/ebbecke/Documents/Unreal Projects/Test/Test.uproject” -unrealexe=“C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -platform=Win64 -installed -stage -archive -package -build -
pak -iostore -compressed -prereqs -archivedirectory=“C:/Users/ebbecke/Desktop/Test 17.04.2025” -clientconfig=Development -nocompile -nocompileuat
UATHelper: Paketerstellung (Windows): Initializing script modules…
UATHelper: Paketerstellung (Windows): Total script module initialization time: 0.24 s.
UATHelper: Paketerstellung (Windows): Using C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\MSBuild.exe
UATHelper: Paketerstellung (Windows): Executing commands…
UATHelper: Paketerstellung (Windows): Installed Sdk validity:
UATHelper: Paketerstellung (Windows): Win64: (Status=Valid, MinAllowed_Sdk=10.0.19041.0, MaxAllowed_Sdk=10.9.99999.0, Current_Sdk=10.0.26100.0, Allowed_AutoSdk=10.0.22621.0, Current_AutoSdk=, Flags=“InstalledSdk_ValidVersionExists”)
UATHelper: Paketerstellung (Windows): Scanning for envvar changes…
UATHelper: Paketerstellung (Windows): … done!
UATHelper: Paketerstellung (Windows): Cleaning Temp Paths…
UATHelper: Paketerstellung (Windows): BUILD SUCCESSFUL
UATHelper: Paketerstellung (Windows): Setting up ProjectParams for C:\Users\ebbecke\Documents\Unreal Projects\Test\Test.uproject
UATHelper: Paketerstellung (Windows): Test.uproject is has no code, but is being treated as a code-based project for platforms Android, IOS, Linux, LinuxArm64, Mac, TVOS, Win64 because: OpenXR plugin is enabled. Creating temporary .Target.cs files.
UATHelper: Paketerstellung (Windows): ********** BUILD COMMAND STARTED **********
UATHelper: Paketerstellung (Windows): Running: C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\ThirdParty\DotNet\8.0.300\win-x64\dotnet.exe “C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll” Test Win64 Development -Project=“C:\Users\ebbecke\Documents\Unreal Projects\Test\Test.uproject” -Manifest=“C:\Users\ebbecke\Documents\Unreal Projects\Test\Intermediate\Build\Manifest.xml” -remoteini=“C:\Users\ebbecke\Documents\Unreal Projects\Test” -skipdeploy -log=“C:\Users\ebbecke\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Gam
es+UE_5.5\UBA-Test-Win64-Development.txt”
UATHelper: Paketerstellung (Windows): Log file: C:\Users\ebbecke\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.5\UBA-Test-Win64-Development.txt
UATHelper: Paketerstellung (Windows): Total execution time: 0.54 seconds
UATHelper: Paketerstellung (Windows): No target name was specified on the command-line.
UATHelper: Paketerstellung (Windows): Took 0,98s to run dotnet.exe, ExitCode=6
UATHelper: Paketerstellung (Windows): UnrealBuildTool failed. See log for more details. (C:\Users\ebbecke\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.5\UBA-Test-Win64-Development.txt)
UATHelper: Paketerstellung (Windows): AutomationTool executed for 0h 0m 3s
UATHelper: Paketerstellung (Windows): AutomationTool exiting with ExitCode=6 (6)
UATHelper: Paketerstellung (Windows): BUILD FAILED
LogStreaming: Display: FlushAsyncLoading(364): 1 QueuedPackages, 0 AsyncPackages
PackagingResults: Error: Unknown Error

I tried to find a solution myself and read that I could need another version of Visual Studio. But unfortunately this did not solve my problem.

I am grateful for any help!

Greetings, Sebastian

2

Hello!

The reason for this not working is quite obscure but really simple: The project can’t be named “Test”, because it’s a reserved keyword by UE.
Just renaming your project to something else should fix the issue.

Please let me know if this doesn’t work for you.

3

Hello!

Thank you for the quick answer. Sorry that I answer so late, I was pretty busy.

Unfortunately this also didnt fix it for me. I startet a new project with a name that doesnt include “test” but the result is the same.

The error message is:

LogEOSSDK: LogEOS: Updating Product SDK Config, Time: 2469.177246
LogEOSSDK: LogEOS: SDK Config Product Update Request Completed - No Change
LogEOSSDK: LogEOS: ScheduleNextSDKConfigDataUpdate - Time: 2469.302979, Update Interval: 350.324402
LogUObjectHash: Compacting FUObjectHashTables data took 1.27ms
LogTurnkeySupport: Project requires temp target (OpenXR Das Plugin ist aktiviert)
LogLauncherProfile: Unable to use promoted target - ../../../../../../Users/ebbecke/Documents/Unreal Projects/Wahl/Binaries/Win64/UnrealGame.target does not exist.
LogMonitoredProcess: Running Serialized UAT: [ cmd.exe /c ““C:/Program Files/Epic Games/UE_5.5/Engine/Build/BatchFiles/RunUAT.bat” -ScriptsForProject=“C:/Users/ebbecke/Documents/Unreal Projects/Wahl/Wahl.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=53434 -project=“C:/Users/ebbecke/Documents/Unreal Projects/Wahl/Wahl.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“C:/Users/ebbecke/Documents/Unreal Projects/Wahl/Wahl.uproject” -unrealexe=“C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\Win64\UnrealE
ditor-Cmd.exe” -platform=Win64 -installed -stage -archive -package -build -pak -iostore -compressed -prereqs -archivedirectory=“C:/Users/ebbecke/Desktop/Wahl VR” -clientconfig=Development” -nocompile -nocompileuat ]
UATHelper: Paketerstellung (Windows): Running AutomationTool…
UATHelper: Paketerstellung (Windows): Using bundled DotNet SDK version: 8.0.300
UATHelper: Paketerstellung (Windows): Starting AutomationTool…
UATHelper: Paketerstellung (Windows): Parsing command line: -ScriptsForProject=“C:/Users/ebbecke/Documents/Unreal Projects/Wahl/Wahl.uproject” Turnkey -command=VerifySdk -platform=Win64 -UpdateIfNeeded -EditorIO -EditorIOPort=53434 -project=“C:/Users/ebbecke/Documents/Unreal Projects/Wahl/Wahl.uproject” BuildCookRun -nop4 -utf8output -nocompileeditor -skipbuildeditor -cook -project=“C:/Users/ebbecke/Documents/Unreal Projects/Wahl/Wahl.uproject” -unrealexe=“C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\Win64\UnrealEditor-Cmd.exe” -platform=Win64 -installed -stage -archive -package -build -
pak -iostore -compressed -prereqs -archivedirectory=“C:/Users/ebbecke/Desktop/Wahl VR” -clientconfig=Development -nocompile -nocompileuat
UATHelper: Paketerstellung (Windows): Initializing script modules…
UATHelper: Paketerstellung (Windows): Total script module initialization time: 0.28 s.
UATHelper: Paketerstellung (Windows): Using C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\MSBuild.exe
UATHelper: Paketerstellung (Windows): Executing commands…
UATHelper: Paketerstellung (Windows): Installed Sdk validity:
UATHelper: Paketerstellung (Windows): Win64: (Status=Valid, MinAllowed_Sdk=10.0.19041.0, MaxAllowed_Sdk=10.9.99999.0, Current_Sdk=10.0.26100.0, Allowed_AutoSdk=10.0.22621.0, Current_AutoSdk=, Flags=“InstalledSdk_ValidVersionExists”)
UATHelper: Paketerstellung (Windows): Scanning for envvar changes…
UATHelper: Paketerstellung (Windows): … done!
UATHelper: Paketerstellung (Windows): Cleaning Temp Paths…
UATHelper: Paketerstellung (Windows): BUILD SUCCESSFUL
UATHelper: Paketerstellung (Windows): Setting up ProjectParams for C:\Users\ebbecke\Documents\Unreal Projects\Wahl\Wahl.uproject
UATHelper: Paketerstellung (Windows): ********** BUILD COMMAND STARTED **********
UATHelper: Paketerstellung (Windows): Running: C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\ThirdParty\DotNet\8.0.300\win-x64\dotnet.exe “C:\Program Files\Epic Games\UE_5.5\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll” Wahl Win64 Development -Project=“C:\Users\ebbecke\Documents\Unreal Projects\Wahl\Wahl.uproject” -Manifest=“C:\Users\ebbecke\Documents\Unreal Projects\Wahl\Intermediate\Build\Manifest.xml” -remoteini=“C:\Users\ebbecke\Documents\Unreal Projects\Wahl” -skipdeploy -log=“C:\Users\ebbecke\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Gam
es+UE_5.5\UBA-Wahl-Win64-Development.txt”
UATHelper: Paketerstellung (Windows): Log file: C:\Users\ebbecke\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.5\UBA-Wahl-Win64-Development.txt
UATHelper: Paketerstellung (Windows): Creating makefile for Wahl (no existing makefile)
UATHelper: Paketerstellung (Windows): Visual Studio 2022 is installed, but is out of date or missing a valid C++ toolchain (minimum version 14.38.33130, preferred version 14.38.33130). Please update Visual Studio 2022 to 17.8 or later and verify that the “MSVC v143 - VS 2022 C++ x64/x86 build tools (v14.38-17.8)” component is selected in the Visual Studio 2022 installation options.
UATHelper: Paketerstellung (Windows): No available x64 toolchains found
UATHelper: Paketerstellung (Windows): Total execution time: 1.26 seconds
UATHelper: Paketerstellung (Windows): Unable to find valid 14.36.32532 C++ toolchain for VisualStudio2022 x64
UATHelper: Paketerstellung (Windows): Took 1,39s to run dotnet.exe, ExitCode=6
UATHelper: Paketerstellung (Windows): UnrealBuildTool failed. See log for more details. (C:\Users\ebbecke\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.5\UBA-Wahl-Win64-Development.txt)
UATHelper: Paketerstellung (Windows): AutomationTool executed for 0h 0m 3s
UATHelper: Paketerstellung (Windows): AutomationTool exiting with ExitCode=6 (6)
UATHelper: Paketerstellung (Windows): BUILD FAILED
PackagingResults: Error: Unknown Error

Thank you really much for trying to help me!

Greetings, Sebastian