Unreal Engine 5.4.4 - Building From Source - Error

Development Programming & Scripting
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2

Hello,

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

  1. I’ve downloaded Github desktop and cloned the repository
  2. I’ve setup VS2022
  3. I’ve run Setup.bat
  4. I’ve run GenerateProjectFiles.bat
  5. I’ve opened newly generated UE5.sln, I’ve changed to Development Editor, Win64 and set UE5 as start up project and hit F5
  6. 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