OnComponentBeginOverlap doesnt work!

Development Programming & Scripting C++
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1

I’ve used this tutorial(Unreal Engine C++ Tutorial #3 - Making a game! - YouTube) and exactly same code doesnt work for me.
.CPP FILE:

AMyActor::AMyActor()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;
	tBox = CreateDefaultSubobject<UBoxComponent>(TEXT("Box"));
	tBox->bGenerateOverlapEvents = true;
	RootComponent = tBox;
	tBox->OnComponentBeginOverlap.AddDynamic(this, &AMyActor::OnBeginOverlap);
	meshas = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("meshas"));
	meshas->AttachTo(RootComponent);
	SpeedScale = 0.0f;
}

void AMyActor::OnBeginOverlap(class AActor* OtherActor, class UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult) {
	OtherActor->SetActorLocation(Sizeation);
}

HEADER:

UPROPERTY(EditAnywhere)
	UShapeComponent* tBox;
UPROPERTY(EditAnywhere)
	UStaticMeshComponent* meshas;
UPROPERTY(EditAnywhere, Category = "Testing")
	float SpeedScale;
float RunningTime;
FVector StartingLocation = FVector(-91.0f, -1719.0f, 270.0f);
FVector Sizeation = FVector(1.5f, 1.5f, 1.5f);
UFUNCTION()
	void OnBeginOverlap(class AActor* OtherActor, class UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult);

Error: http://i.imgur.com/eRhRlEr.png

P.S. Line 15 is OnComponentBeginOverlap

2

The signature of the delegate changed in UE4.12: a new parameter has been added as first one ( UPrimitiveComponent* OverlappedComp ). Your callback should be:

void OnBeginOverlap(UPrimitiveComponent* OverlappedComp, class AActor* OtherActor, class UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult);