Error: CDO Constructor: Failed to find Material

Hello, I’m trying to load a material instance from a blueprint:

static ConstructorHelpers::FObjectFinder<UMaterial> MIArea(TEXT("MaterialInstanceConstant'/Game/Materials/Decals/MI_area.MI_area'"));
if (MIArea.Object != NULL)
{
	UMaterial* TheMaterial = (UMaterial*)MIArea.Object;
	UMaterialInstanceDynamic* TheMaterial_Dyn = UMaterialInstanceDynamic::Create(TheMaterial, this);
	AttackAreaMesh->SetMaterial(0, TheMaterial_Dyn);
}

But I’m getting as a result: Error: CDO Constructor: Failed to find MaterialInstanceConstant’/Game/Materials/Decals/MI_area.MI_area

28882-propertynotfoundwarning.png

I right clicked the Material Instance in the Editor, then clicked “Copy Reference”, and pasted like in the code above.
The blueprint is in the right path.

What could be the problem?
Thanks

28879-copyreference.png

My bad, I had UMaterial instead of UMaterialInstance for the type.