Hello, just a quick observation: In 6.x version IHeaderResponse is in a different package it's under org.apache.wicket.markup.*head* so it's explained why you'd get the exception.
I think this JQWicket you are using is the problem. Looks unmaintained and designed for 1.5 version(previous version than 6.x). I guess it's this one https://code.google.com/p/jqwicket/ -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Using-Wicket-6-20-give-following-error-tp4671619p4671648.html Sent from the Users forum mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org