[urgent help] Cannot build due to UE4 internal error

Development Programming & Scripting C++
1

Please help.

Everything was working fine. I made a very small change to my C++ source file, and suddenly I can’t build.
I deleted intermediate files and tried to rebuild but I continue to get this error.



1>------ Rebuild All started: Project: Speedball, Configuration: Development_Editor x64 ------
1>Cleaning SpeedballEditor and UnrealHeaderTool binaries...
1>Using 'git status' to determine working set for adaptive non-unity build (F:\Unreal\Speedball01\Speedball).
1>Creating makefile for SpeedballEditor (no existing makefile)
1>Parsing headers for SpeedballEditor
1> Running UnrealHeaderTool "F:\Unreal\Speedball01\Speedball\Speedball.uproject" "F:\Unreal\Speedball01\Speedball\Intermediate\Build\Win64\SpeedballEditor\Development\SpeedballEditor.uhtmanifest" -LogCmds="loginit warning, logexit warning, logdatabase error" -Unattended -WarningsAsErrors -abslog="C:\Users\smatt\AppData\Local\UnrealBuildTool\Log_UHT.txt" -installed
1>LogWindows : error : === Critical error: ===
1>LogWindows : error :
1>LogWindows : error : Assertion failed: Enum->GetCppForm() == UEnum::ECppForm::EnumClass [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Programs/UnrealHeaderTool/Private/CodeGenerator.cpp] [Line: 3568]
1>LogWindows : error :
1>LogWindows : error : [Callstack] 0x00007ffdfbacde97 UnrealHeaderTool-Core.dll!?CheckVerifyFailedImpl@FDebug@@CAXPEBD0HPEB_WZZ() ]
1>LogWindows : error : [Callstack] 0x00007ff684cfe072 UnrealHeaderTool.exe!FNativeClassHeaderGenerator::ExportEnum() ]
1>LogWindows : error : [Callstack] 0x00007ff684cccfc0 UnrealHeaderTool.exe!<lambda_f3726bd06742b417fc0e3bd706add5c0>::operator()() ]
1>LogWindows : error : [Callstack] 0x00007ff684cbc68b UnrealHeaderTool.exe!ParallelForImpl::ParallelForInternal<TFunctionRef<void __cdecl(int)> >() ]
1>LogWindows : error : [Callstack] 0x00007ff684d2e097 UnrealHeaderTool.exe!ParallelFor() ]
1>LogWindows : error : [Callstack] 0x00007ff684cc0871 UnrealHeaderTool.exe!ParallelForImpl::TParallelForData<TFunctionRef<void __cdecl(int)> >::Process() ]
1>LogWindows : error : [Callstack] 0x00007ff684d2ecd9 UnrealHeaderTool.exe!?ParseAllHeadersInside@FHeaderParser@@SA?AW4Type@ECompilationResult@@AEAVFClasses@@PEAVFFeedbackContext@@PEAVUPackage@@AEBUFManifestModule@@AEAV?$TArray@PEAVIScriptGeneratorPluginInterface@@anonymous_user_e71e0d8a?$TSizedDefaultAllocator@$0CA@@@@@@Z() ]
1>LogWindows : error : [Callstack] 0x00007ff684d57191 UnrealHeaderTool.exe!UnrealHeaderTool_Main() ]
1>LogWindows : error : [Callstack] 0x00007ff684d5afeb UnrealHeaderTool.exe!wmain() ]
1>LogWindows : error : [Callstack] 0x00007ff684d5e650 UnrealHeaderTool.exe!__scrt_common_main_seh() ]
1>LogWindows : error : [Callstack] 0x00007ffe55fe7bd4 KERNEL32.DLL!UnknownFunction ]
1>LogWindows : error : [Callstack] 0x00007ffe5708ce51 ntdll.dll!UnknownFunction ]
1>LogWindows : error :
1>LogWindows : error :
1>LogWindows : error :
1>LogWindows : error :
1>LogWindows : error : Error reentered: Assertion failed: Enum->GetCppForm() == UEnum::ECppForm::EnumClass [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Programs/UnrealHeaderTool/Private/CodeGenerator.cpp] [Line: 3568]
1>LogWindows : error : HandleError re-entered.
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.MakeFile.Targets(54,5): error MSB3073: The command "chcp 65001 >NUL && "C:\Program Files\Epic Games\UE_4.25\Engine\Build\BatchFiles\Rebuild.bat" SpeedballEditor Win64 Development -Project="F:\Unreal\Speedball01\Speedball\Speedball.uproject" -WaitMutex -FromMsBuild" exited with code -1.
1>Done building project "Speedball.vcxproj" -- FAILED.
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========
2

And what change would that be? Does it compile when you revert the change?

3 

UENUM(BlueprintType)
enum class EBunkerType : uint8
{
EField UMETA(DisplayName = "Field"),
EBuzzerRed UMETA(DisplayName = "BuzzerRed"),
EBuzzerBlue UMETA(DisplayName = "BuzzerBlue")
};

Ok I feel really really stupid now.

I added this enum and it broke
When I removed it … it compiles.
I just couldn’t see any correlation from this code to the error I was getting.

I’m guessing I’m maybe using a reserved word?

Thanks!

4

Being stupid, most probably UMETA is messing with this, it should be UMETA then the name.