Working with UMG using C++?

[anonymous_user_6abc9b3d1 (anonymous_user_6abc9b3d)]

SOLVED

I know the error is occuring because of these lines:

UInventoryHUD inventoryHUD;
inventoryHUD.addSlot(ItemName);

If I remove them, everything runs fine. So I guess it is because of how I’m calling/referencing it. There is a UInventoryHUD class which contains the function like this:

UFUNCTION(BlueprintCallable, Category = Clicked)
FString addSlot(FString ItemName);

All the function does is return ItemName. Then the blueprint is suppose to pick that up. The engine keeps crashing with this error:

Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.7\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp] [Line: 2257]
FObjectInitializer::Get() can only be used inside of UObject-derived class constructor.

Removing those two lines does not result in the error.

Also, if you mean the widget UI designer by “Drag and Drop”, then I am in fact using that.