Mubanga

Hi I'm trying to run a server on my old Mac Book Pro. I followed the instructions changed the info.plist file. But every time I get a error saying something like: Error: Could not find or load main class zombie.gameStates.GameServer logout I tried changing the capitalisation also changed the "/" in to "." because that's how all the other classes are written but no cigar. Any ideas how to get this working? Running build 26 from a Mac Book Pro OS X version 10.9.4