Finally Found the Error I've Been Looking for (or "OSX Error Code Lookup Tool")
In a recent project, I kept receiving a -10000 error in the console when running my app. Quite frustrating to say the least since the error description was useless, and Google wasn't any help at all either.
So I was completely thrilled to come across the OSX Error Code Lookup Tool. Download, compile, and plug in your error code -- it'll give you something good back!