I have an old repair addon that was made for my server. Earlier today I was trying to load the addon and kept getting "PrefaAttribute.Library dose not contain definition for "GetAll" and no exstension method "GetAll" of type "PrefAttribute.Library" could not be found. Are you missing an assembly reference?"

Sadly searching google for this error hasnt given me any help... So I was hoping someone here could help me?

Here same issue fixed https://umod.org/community/534-build/899-prefabattributelibrary-does-not-contain-a-definition-for-getall