First time with this error - Inconsistent accessibility

Question

This is my first time working with interfaces and proper namespace structure. When I compile I get the error below, I have no idea what it means. Any searches I do shows up

Answer 1

You have a public property on a public class that exposes a list of non-public types.
You need to change IOperatorRequest to be public or change the UrlBuilderO2 class or GetUrlReuests method to be non-public.