Crash when adding mesh

Development Programming & Scripting C++
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1

Im trying to make a map. I made a class which inherit from pawn. I add several cube on the constructor but it crash when I add too much cubes. Let’s take the following code:

int WIDTH_MAP = 13;
int HEIGHT_MAP = 13;
// Set this pawn to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
PrimaryActorTick.bCanEverTick = true;
this->SetActorLocation(FVector(0.f, 0.f, 0.f));
//this->RootComponent->SetWorldLocation(FVector(0.f, 0.f, 0.f));
//Create blocks
for (int i = 1; i < WIDTH_MAP; i += 2) {
	for (int j = 1; j < HEIGHT_MAP; j +=2) {
		FString s = FString::FromInt(j);
		s += FString::FromInt(i);
		UStaticMeshComponent* SphereVisual = CreateDefaultSubobject<UStaticMeshComponent>(FName(*s));

		m_mesh.Add(SphereVisual);
		//SphereVisual->AttachTo(RootComponent, FName(*s), EAttachLocation::KeepRelativeOffset);

		static ConstructorHelpers::FObjectFinder<UStaticMesh> SphereVisualAsset(TEXT("/Game/StarterContent/Shapes/Shape_Cube.Shape_Cube"));
		if (SphereVisualAsset.Succeeded())
		{
			SphereVisual->SetStaticMesh(SphereVisualAsset.Object);
			SphereVisual->SetWorldLocation(FVector(i * 100, j * 100, 0.0f));
		}
	}
}

It crash on launch, but if I set the with and the height to 11, it does not crash. Maybe it works only by chance, if so, what is the good usage to add severals cube mesh ?

Thank you for your help, just starting ue4 and got a looooot of crash so far its annoying.

2

Have you tried putting something in between the object names j and i ? so

FString s = FString::FromInt(j);
s += ".";
s += FString::FromInt(i);

You might be getting some repeating values without it.

3

Hello Nalyah,

I’d recommend looking into TTaM’s solution below, but if that does not work for you, I have a few questions:

  • Can you please provide your crash logs located in your project’s Saved->Logs folder?
  • Could you please provide your machine ID located in the Crash Reporter window that appears upon crashing, and ensure that you hit Send on the Crash Reporter window?

Thank you.

4

Well done! it works. A message instead of a crash would have helped me :stuck_out_tongue_winking_eye: