Xcode: throwing a compiler error in the issue navigator

I'm working on a UI utility class I would like to publish on github. I would like to know how to throw a compiler error in the issue navigator. I should stress that this is not about throwing errors at runtime! I would like to signal to the programmer using my utility class that adding a certain property to an object is not allowed when this object is in a certain state. I know that I can use assertionFailure("bla bla") in Swift but this would throw an error at runtime.