UENUM() error - Cast of NULL to Package failed

Development Programming & Scripting C++
1

Hello. I’m trying to create an enumeration. I use this code


    UENUM()
    namespace ESomeEnum
    {
    	enum Type
    	{
    		TestTest
    	};
    }

But I’m getting a runtime error:

This problem starts in MyModule.generated.cpp - in one of the generated functions, namely

Jumping with breakpoints I found that my enum type is not registered in UObjectHash.cpp ObjectHash, i.e. HashObject() function is not called for my object. But why?

2

Can you just try filling some of the details out for the macro that I end up filling out when it works:


UENUM(BlueprintType)
namespace States {
    enum SUN{
        RISING UMETA(DisplayName = "Rising"),
        SETTING UMETA(DisplayName = "Setting")
    };
}

I’m wondering if the macro needs a value?

Complete guess, can’t test where I currently am.

3

No, this is not necessary. My enum definition should work. At least I saw such usage all over the engine. Btw, adding UMETA didn’t help.

4

Right, in that case, when I get home… I’m gonna help yo ***… See if we can solve this together if someone else doesn’t beat me to it.

5

Yeah, thanks. The trickiest part is that UENUMs work in the engine, they work in my other code. But in this particular case - in my own module - they doesn’t work.

6

It doesn’t seem to be the code you have added. It’s working fine. Can you make sure that removing the above enumeration actually does fix the error…

7

Yes, I know that separately from my project it works (I wrote about it). I wonder what I’ve missed that it doesn’t work in my module?