I cann't run the seam wiki any more,here is the exception message:
10:35:28,414 INFO [Initialization] two components with same name, higher precedence wins: org.jboss.seam.remoting.gwt.gwtRemoteService
10:35:28,414 ERROR [[/wiki]] Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener
java.lang.IllegalStateException: Two components with the same name and precedence: org.jboss.seam.remoting.gwt.gwtRemoteService
I fix it by remove the seam-remoting.jar from the lib