Reference PackedActor in c++

I have data driven structures that all have a unique asset. I have tried doing something like this but it can’t find the asset:

	static ConstructorHelpers::FObjectFinder<APackedLevelActor> StructureRef(TEXT("/Script/Engine.Blueprint'/Game/Game/BPP_house.BPP_house'"));

BPP_house is a packedlevelactor.
The above code works with static meshes but why not with a packedlevelactor?

because the structures are dynamically created It needs to be done in c++.