I downloaded the most recent production 2.0.0.GA and the problem is still there. I checked the ResourceBundle class and there is not setter for bundleNames, the error is as follows: java.lang.IllegalArgumentException: no such setter method: org.jboss.seam.core.ResourceBundle.bundleNames Could you take a look and let me know the work-around? Thanks, Sheng View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106014#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...