error message i dont understand

I have an error message when i compile that i dont understand, and was hoping someone could tell me what it generally means:

"statement cannot resolve address of overloaded function"

the statement it points to is "storage.first()"

cheers for any replies

Andy

I'm probably not the one who's going to know the answer (I'll try anyway :) ) but if you'd post the code, it'll probably help folks to know what you're dealing with.