Bug? GXT (Ext GWT) Compiles in 'devmode' target but not for 'build'

[jayjay1]

'm working on a GXT project, and I'm using GXT UiBinder. I'm compiling with ant. The target devmodeworks fine with no errors, and I'm able to see my application running in the browser. But using the targetbuild I get the following error:


[ERROR] Errors in 'jar:file:/home/webbtra/dev/rail_gxt/gxt-2.2.3/gxt.jar!/com/extjs/gxt/ui/client/data/BeanModelLookup.java'[ERROR] Internal compiler errorjava.lang.IncompatibleClassChangeError: Found class com.google.gwt.core.ext.typeinfo.JClassType, but interface was expected

[sven]

Which GWT version are you using? Make sure to use the correct gxt jar that matches the GWT version you are using.