Our application is throwing the following error

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/].[default]] Servlet.service() for servlet default threw exception
java.lang.IllegalStateException: No phase id bound to current thread (make sure you do not have two SeamPhaseListener instances installed)

I have verified that there is only one jboss-seam.jar which is at the root folder of the ear. The application is using Seam 2.1.1 and jboss-4.2.2.

Any suggestions on how to fix it?