Unreal Engine 5.4.4 - Building From Source - Error

RobMeade · September 1, 2024, 10:50am

Hi all, hoping someone might be able to help me with this. I’m trying to build the Unreal Engine source for a personal project (dedicated server, apparently UE source is required for that).

I cloned the repo, and then locally have checked out the tag for 5.4.4, no amendments…

I’ve followed the ReadMe.md, but I keep getting this error;

12>F:\Software\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets(44,5): error MSB3073: The command "..\..\Build\BatchFiles\Build.bat -Target="UnrealEditor Win64 Development" -Target="ShaderCompileWorker Win64 Development -Quiet" -WaitMutex -FromMsBuild -architecture=x64" exited with code 6.

The log from the build in Visual Studio is attached.

Anyone run into this/have any ideas?

Thanks in advance for your help/time

Build started at 10:36...
1>------ Build started: Project: EpicGames.UBA, Configuration: Development Any CPU ------
2>------ Build started: Project: EpicGames.Oodle, Configuration: Development Any CPU ------
3>------ Build started: Project: EpicGames.OIDC, Configuration: Development Any CPU ------
4>------ Build started: Project: EpicGames.Core, Configuration: Development Any CPU ------
2>EpicGames.Oodle -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.Oodle\bin\Development\net6.0\EpicGames.Oodle.dll
3>EpicGames.OIDC -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.OIDC\bin\Development\net6.0\EpicGames.OIDC.dll
1>EpicGames.UBA -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.UBA\bin\Development\net6.0\EpicGames.UBA.dll
4>EpicGames.Core -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.Core\bin\Development\net6.0\EpicGames.Core.dll
5>------ Build started: Project: EpicGames.MsBuild, Configuration: Development Any CPU ------
6>------ Build started: Project: EpicGames.IoHash, Configuration: Development Any CPU ------
6>EpicGames.IoHash -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.IoHash\bin\Development\net6.0\EpicGames.IoHash.dll
7>------ Build started: Project: EpicGames.Serialization, Configuration: Development Any CPU ------
7>EpicGames.Serialization -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.Serialization\bin\Development\net6.0\EpicGames.Serialization.dll
8>------ Build started: Project: EpicGames.Horde, Configuration: Development Any CPU ------
5>EpicGames.MsBuild -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.MsBuild\bin\Development\net6.0\EpicGames.MsBuild.dll
9>------ Build started: Project: EpicGames.Build, Configuration: Development Any CPU ------
9>EpicGames.Build -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.Build\bin\Development\net6.0\EpicGames.Build.dll
10>------ Build started: Project: EpicGames.UHT, Configuration: Development Any CPU ------
10>EpicGames.UHT -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.UHT\bin\Development\net6.0\EpicGames.UHT.dll
8>EpicGames.Horde -> F:\Projects\Unreal\UnrealEngine\Engine\Source\Programs\Shared\EpicGames.Horde\bin\Development\net6.0\EpicGames.Horde.dll
11>------ Build started: Project: UnrealBuildTool, Configuration: Development Any CPU ------
11>UnrealBuildTool -> F:\Projects\Unreal\UnrealEngine\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll
12>------ Build started: Project: UE5, Configuration: Development_Editor x64 ------
12>Using bundled DotNet SDK version: 6.0.302
12>Running UnrealBuildTool: dotnet "..\..\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll" -Target="UnrealEditor Win64 Development" -Target="ShaderCompileWorker Win64 Development -Quiet" -WaitMutex -FromMsBuild -architecture=x64
12>Log file: F:\Projects\Unreal\UnrealEngine\Engine\Programs\UnrealBuildTool\Log.txt
12>Using 'git status' to determine working set for adaptive non-unity build (F:\Projects\Unreal\UnrealEngine).
12>Creating makefile for UnrealEditor (UnrealBuildTool assembly is newer)
12>Available x64 toolchains (1):
12> * F:\Software\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.40.33807
12>    (Family=14.40.33807, FamilyRank=5, Version=14.40.33814, Is64Bit=True, ReleaseChannel=Latest, Architecture=x64)
12>Visual Studio 2022 compiler version 14.40.33814 is not a preferred version. Please use the latest preferred version 14.38.33130
12>Available x64 toolchains (1):
12> * F:\Software\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.40.33807
12>    (Family=14.40.33807, FamilyRank=5, Version=14.40.33814, Is64Bit=True, ReleaseChannel=Latest, Architecture=x64)
12>Visual Studio 2022 compiler version 14.40.33814 is not a preferred version. Please use the latest preferred version 14.38.33130
12>Parsing headers for UnrealEditor
12>  Running Internal UnrealHeaderTool UnrealEditor F:\Projects\Unreal\UnrealEngine\Engine\Intermediate\Build\Win64\UnrealEditor\Development\UnrealEditor.uhtmanifest -WarningsAsErrors
12>Total of 0 written
12>Reflection code generated for UnrealEditor in 23.4372911 seconds
12>Creating makefile for ShaderCompileWorker (UnrealBuildTool assembly is newer)
12>Available x64 toolchains (1):
12> * F:\Software\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.40.33807
12>    (Family=14.40.33807, FamilyRank=5, Version=14.40.33814, Is64Bit=True, ReleaseChannel=Latest, Architecture=x64)
12>Visual Studio 2022 compiler version 14.40.33814 is not a preferred version. Please use the latest preferred version 14.38.33130
12>Parsing headers for ShaderCompileWorker
12>  Running Internal UnrealHeaderTool ShaderCompileWorker F:\Projects\Unreal\UnrealEngine\Engine\Intermediate\Build\Win64\ShaderCompileWorker\Development\ShaderCompileWorker.uhtmanifest -WarningsAsErrors
12>Total of 0 written
12>Reflection code generated for ShaderCompileWorker in 0.2454376 seconds
12>Building UnrealEditor and ShaderCompileWorker...
12>Using Visual Studio 2022 14.40.33814 toolchain (F:\Software\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.40.33807) and Windows 10.0.22621.0 SDK (C:\Program Files (x86)\Windows Kits\10).
12>EXEC : warning : Visual Studio 2022 compiler is not a preferred version
12>Determining max actions to execute in parallel (8 physical cores, 16 logical cores)
12>  Executing up to 8 processes, one per physical core
12>  Requested 1.5 GB memory per action, 11.5 GB available: limiting max parallel actions to 7
12>Using Parallel executor to run 11 action(s)
12>------ Building 11 action(s) started ------
12>** For UnrealEditor-Win64-Development **
12>[1/11] Link [x64] UnrealEditor-UbaController.dll
12>   Creating library ..\Plugins\UbaController\Intermediate\Build\Win64\x64\UnrealEditor\Development\UbaController\UnrealEditor-UbaController.sup.lib and object ..\Plugins\UbaController\Intermediate\Build\Win64\x64\UnrealEditor\Development\UbaController\UnrealEditor-UbaController.sup.exp
12>[2/11] Compile [x64] Module.AvalancheViewport.cpp
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(244): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(246) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1113) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(251) <call to TSharedPtr<IAvaViewportClient,1>::operator->>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(258): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(263): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(265): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Containers\Array.h(389): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(266) <call to TArray<UE::Math::TVector2<float>,TSizedDefaultAllocator<32> >::TArray<UE::Math::TVector2<float>,TSizedDefaultAllocator<32> >>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Containers\Array.h(1957): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(267) <call to TArray<UE::Math::TVector2<float>,TSizedDefaultAllocator<32> >::SetNum>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(270): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1113) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(272) <call to TSharedPtr<IAvaViewportClient,1>::operator->>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\GenericPlatform\GenericPlatformMath.h(928): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(273) <call to FGenericPlatformMath::Min<double>>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1113) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(276) <call to TSharedPtr<IAvaViewportClient,1>::operator->>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(278): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\GenericPlatform\GenericPlatformMath.h(928): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(593) <call to FGenericPlatformMath::Min<double>>
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(600) <call to FMath::Clamp<double>>
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(596) <call to FMath::Clamp>
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(279) <call to FMath::Clamp<float,double,float>>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(280): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(281): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(282): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\Box2D.h(298): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(284) <call to UE::Math::TBox2<float>::GetSize>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\Box2D.h(253): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(285) <call to UE::Math::TBox2<float>::GetCenter>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(288): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(289): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(291): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(296): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(48): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(298) <call to FAvaCameraZoomController::GetFOVPerStep>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\GenericPlatform\GenericPlatformMath.h(921): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(299) <call to FGenericPlatformMath::Max<double>>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(300): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(596): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(301) <call to FMath::Clamp<double,float,double>>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(48): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(303) <call to FAvaCameraZoomController::GetFOVPerStep>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(304): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(306): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(190): error C4702: unreachable code
12>   inlined at F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(308) <call to FAvaCameraZoomController::Reset>
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>F:\Projects\Unreal\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(313): error C4702: unreachable code
12>   while compiling FAvaCameraZoomController::CenterOnBox
12>Total time in Parallel executor: 32.41 seconds
12>Total execution time: 77.37 seconds
12>F:\Software\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets(44,5): error MSB3073: The command "..\..\Build\BatchFiles\Build.bat -Target="UnrealEditor Win64 Development" -Target="ShaderCompileWorker Win64 Development -Quiet" -WaitMutex -FromMsBuild -architecture=x64" exited with code 6.
12>Done building project "UE5.vcxproj" -- FAILED.
========== Build: 11 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build completed at 10:38 and took 01:35.765 minutes ==========

Lord_D1as · September 8, 2024, 4:10pm

Hello,

I’ve got the same issue. I’ve followed steps on unreal engine github: https://github.com/EpicGames/UnrealEngine

I’ve downloaded Github desktop and cloned the repository
I’ve setup VS2022
I’ve run Setup.bat
I’ve run GenerateProjectFiles.bat
I’ve opened newly generated UE5.sln, I’ve changed to Development Editor, Win64 and set UE5 as start up project and hit F5
and I’ve got this error:

1>------ Building 43 action(s) started ------
1>** For UnrealEditor-Win64-Development **
1>[1/43] Compile [x64] Module.DatasmithRuntime.cpp
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2065: 'UDatasmithObjectTemplate': undeclared identifier
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2275: 'UDatasmithObjectTemplate': expected an expression instead of a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: prefix the qualified-id with 'typename' to indicate a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2923: 'TObjectPtr': 'UDatasmithObjectTemplate' is not a valid template type argument for parameter 'T'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: see declaration of 'UDatasmithObjectTemplate'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C3203: 'TObjectPtr': unspecialized class template can't be used as a template argument for template parameter 'InValueType', expected a real type
1>[2/43] Compile [x64] Module.DataprepLibraries.cpp
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2065: 'UDatasmithObjectTemplate': undeclared identifier
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2275: 'UDatasmithObjectTemplate': expected an expression instead of a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: prefix the qualified-id with 'typename' to indicate a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2923: 'TObjectPtr': 'UDatasmithObjectTemplate' is not a valid template type argument for parameter 'T'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: see declaration of 'UDatasmithObjectTemplate'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C3203: 'TObjectPtr': unspecialized class template can't be used as a template argument for template parameter 'InValueType', expected a real type
1>[3/43] Compile [x64] Module.DMXRuntime.4.cpp
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2065: 'UDatasmithObjectTemplate': undeclared identifier
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2275: 'UDatasmithObjectTemplate': expected an expression instead of a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: prefix the qualified-id with 'typename' to indicate a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2923: 'TObjectPtr': 'UDatasmithObjectTemplate' is not a valid template type argument for parameter 'T'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: see declaration of 'UDatasmithObjectTemplate'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C3203: 'TObjectPtr': unspecialized class template can't be used as a template argument for template parameter 'InValueType', expected a real type
1>[4/43] Compile [x64] Module.UserToolBoxBasicCommand.cpp
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2065: 'UDatasmithObjectTemplate': undeclared identifier
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2275: 'UDatasmithObjectTemplate': expected an expression instead of a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: prefix the qualified-id with 'typename' to indicate a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2923: 'TObjectPtr': 'UDatasmithObjectTemplate' is not a valid template type argument for parameter 'T'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: see declaration of 'UDatasmithObjectTemplate'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C3203: 'TObjectPtr': unspecialized class template can't be used as a template argument for template parameter 'InValueType', expected a real type
1>[5/43] Compile [x64] Module.AvalancheViewport.cpp
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(244): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(246) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1113) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(251) <call to TSharedPtr<IAvaViewportClient,1>::operator->>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(258): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(263): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(265): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Containers\Array.h(389): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(266) <call to TArray<UE::Math::TVector2<float>,TSizedDefaultAllocator<32> >::TArray<UE::Math::TVector2<float>,TSizedDefaultAllocator<32> >>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Containers\Array.h(1957): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(267) <call to TArray<UE::Math::TVector2<float>,TSizedDefaultAllocator<32> >::SetNum>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(270): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1113) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(272) <call to TSharedPtr<IAvaViewportClient,1>::operator->>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\GenericPlatform\GenericPlatformMath.h(928): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(273) <call to FGenericPlatformMath::Min<double>>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1092): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h(1113) <call to TSharedPtr<IAvaViewportClient,1>::IsValid>
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(276) <call to TSharedPtr<IAvaViewportClient,1>::operator->>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(278): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\GenericPlatform\GenericPlatformMath.h(928): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(593) <call to FGenericPlatformMath::Min<double>>
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(600) <call to FMath::Clamp<double>>
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(596) <call to FMath::Clamp>
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(279) <call to FMath::Clamp<float,double,float>>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(280): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(281): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(282): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\Box2D.h(298): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(284) <call to UE::Math::TBox2<float>::GetSize>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\Box2D.h(253): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(285) <call to UE::Math::TBox2<float>::GetCenter>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(288): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(289): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(291): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(296): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(48): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(298) <call to FAvaCameraZoomController::GetFOVPerStep>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\GenericPlatform\GenericPlatformMath.h(921): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(299) <call to FGenericPlatformMath::Max<double>>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(300): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Source\Runtime\Core\Public\Math\UnrealMathUtility.h(596): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(301) <call to FMath::Clamp<double,float,double>>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(48): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(303) <call to FAvaCameraZoomController::GetFOVPerStep>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(304): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(306): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(190): error C4702: unreachable code
1>   inlined at C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(308) <call to FAvaCameraZoomController::Reset>
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Experimental\Avalanche\Source\AvalancheViewport\Private\Interaction\AvaCameraZoomController.cpp(313): error C4702: unreachable code
1>   while compiling FAvaCameraZoomController::CenterOnBox
1>[6/43] Compile [x64] Module.DatasmithImporter.3.cpp
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2065: 'UDatasmithObjectTemplate': undeclared identifier
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2275: 'UDatasmithObjectTemplate': expected an expression instead of a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: prefix the qualified-id with 'typename' to indicate a type
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C2923: 'TObjectPtr': 'UDatasmithObjectTemplate' is not a valid template type argument for parameter 'T'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): note: see declaration of 'UDatasmithObjectTemplate'
1>C:\Users\xondr\Documents\Engine\UnrealEngine\Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Public\DatasmithAssetUserData.h(26): error C3203: 'TObjectPtr': unspecialized class template can't be used as a template argument for template parameter 'InValueType', expected a real type
1>Total time in Parallel executor: 8.25 seconds

Lord_D1as · September 9, 2024, 7:44pm

Ok, I’ve figured down, but the issue is really annoying and Unreal Engine on git hub does not warn about the issue.

Open VS Installer and hit Modify
Go to the Individual Components on the left top
and search for MSVC v143 - VS 2022 C++ x64/x86 build tools (v14.38-17.8) and install this build tool

NOTE: For some reason I’ve got latest version of the build tool and it did not work

Kovalev_Alexey31 · September 11, 2024, 6:14pm

Fix: cherry pick ad420b6b885c22ecf238cf7f69488f30fbef93c6 into your branch 5.4

ScottDunbar.io · September 12, 2024, 3:44pm

you are an angel. thank you

anon45620780 · October 28, 2024, 2:59pm

Hello,

Thank you so much for the information !
I also ran into the same problem, and have managed to solve it with the same steps.

p.s. Reading the compiling logs carefully, the following outputs can be found, which is exactly the problem.

12>Visual Studio 2022 compiler version 14.40.33814 is not a preferred version. Please use the latest preferred version 14.38.33130