Class not found: net/minecraft/core/HolderLookup$a

[rlqu]

Hi, I just implemented the lib in my 1.21.4 paper plugin but it says that it can't find net/minecraft/core/HolderLookup$a on plugin startup. In my code however, I can find the needed class. Why is that?

[0dinD]

AnvilGUI does not use that class to my knowledge, so I think the issue is with your code or another library you're using rather than AnvilGUI. But it's hard to say anything at all if you don't send us a stack trace of the error from the server console / logs.