I dont know Why Tick cause crash

Development Programming & Scripting
, , ,
1 
void AFaceTheSunCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	if (HasAuthority())
	{
		FlashLight->SetWorldRotation(GetControlRotation());
	}
} // here is line 227

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x0000000000000391

UnrealEditor_FaceTheSun_9552!AFaceTheSunCharacter::Tick() [D:\UnrealProjects\FaceTheSun\Client\FaceTheSun\Source\FaceTheSun\FaceTheSunCharacter.cpp:227]
UnrealEditor_Engine!AActor::TickActor() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:1410]
UnrealEditor_Engine!FActorTickFunction::ExecuteTick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:222]
UnrealEditor_Engine!FTickFunctionTask::DoTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:284]
UnrealEditor_Engine!TGraphTask<FTickFunctionTask>::ExecuteTask() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:1348]
UnrealEditor_Core!FNamedTaskThread::ProcessTasksNamedThread() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:760]
UnrealEditor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:649]
UnrealEditor_Core!FTaskGraphCompatibilityImplementation::WaitUntilTasksComplete() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:2203]
UnrealEditor_Engine!FTickTaskSequencer::ReleaseTickGroup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:565]
UnrealEditor_Engine!FTickTaskManager::RunTickGroup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:1592]
UnrealEditor_Engine!UWorld::RunTickGroup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelTick.cpp:794]
UnrealEditor_Engine!UWorld::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelTick.cpp:1537]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1890]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:517]
UnrealEditor!FEngineLoop::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5367]
UnrealEditor!GuardedMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:202]
UnrealEditor!GuardedMainWrapper() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:107]
UnrealEditor!LaunchWindowsStartup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:244]
UnrealEditor!WinMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:282]
UnrealEditor!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

This code work fine before. But suddenly it doesnt work

2

Hi 4.5cm,

make sure that FlashLight is valid before using it:

something like

check(FlashLight) is good for catching nullptr’s while developing your code.

and a simple if(FlashLight) { } around where you’re using it.

3

Hello RecourseDesign
Thx a lot i dont know reason but it works for me (i think its because of AI Controller ) And I found another problem

LogOutputDevice: Error: === Handled ensure: ===
LogOutputDevice: Error: Ensure condition failed: this->IsBound()  [File:D:\Epic Games\UE_5.1\Engine\Source\Runtime\Core\Public\Delegates\DelegateSignatureImpl.inl] [Line: 1037] 
LogOutputDevice: Error: Unable to bind delegate to 'OnDectectedEnemyBySight' (function might not be marked as a UFUNCTION or object may be pending kill)
LogOutputDevice: Error: Stack: 
LogOutputDevice: Error: [Callstack] 0x00007ffaab4bf576 UnrealEditor-FaceTheSun-9787.dll!ACommonAiContoroller::BeginPlay() [D:\UnrealProjects\FaceTheSun\Client\FaceTheSun\Source\FaceTheSun\CommonAiContoroller.cpp:90]
LogOutputDevice: Error: [Callstack] 0x00007ffa2fbb3793 UnrealEditor-Engine.dll!AActor::DispatchBeginPlay() ]

but i can solve it myself thx very much!!

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