Ive successfully run and deploy a google appengine app from a windows machine for months. Now i on a mac and my app works fine running locally (both in hosted mode and compiled mode). However, after doing a mvn gae:deploy my app starts spitting out RPC StatusCodeExceptions through javascript only. There is no exception on the Server side. The EXACT code runs just find when doing mvn gae:deploy on my old windows machine. Im using gwt v2.0.4 and gae 1.3.7 Any help would be much appreciated