Weird Thing On Delegate

I encountered a problem when I was trying to bind a delegate to a function.

Here is the delegate:

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FHenCaughtDelegate, const AHen*, Self);

UE complains that “EventOnThrowGrapple_Event Signature Error: The function/event ‘EventOnCaught_Event’ does not match the necessary signature - has the delegate or function/event changed?”.

At first I suspected that it’s because the function signature is wrong. But no.

I tried to replace const AHen* to a simple int but got the same error.

After some googling, I was luckly found this link!

It says that you should never name the parameter self. I haven’t investigated it further but here’s the modified code:

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FHenCaughtDelegate, const AHen*, Me);