Yeah, but its strange, this is the error i'm seeing in the production mode, and in the develpoment mode is different as i said in the message. Im using the newer versoin of both jdk and jre, appengine and gwt. Bu its x64.
2011/10/1 Francois Masurel <f.masu...@gmail.com> > Hi Bruno, > > I don't think it's related to AppEngine. > > I've found this after a quick search on Google : > > "It means that you compiled your classes under a specific JDK, but then > try to run them under older version of JDK. So, you can't run classes > compiled with JDK 6.0 under JDK 5.0. The same with classes compiled under > JDK 7.0 when you try to run them under JDK 6.0." > > Hoping it will help. > > Francois > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-appengine-java/-/R9yXLwV0Dr8J. > To post to this group, send email to > google-appengine-java@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.