"dgolovin" wrote : What version of JBoss Tools are you using? I suppose it is 2.1.1. It's JBoss Tools 2.1.0.GA "dgolovin" wrote : Could you post stack trace here? How can I get that? "dgolovin" wrote : Could you try it with jdk1.5.0_08 and jboss-seam-2.0.1.GA? Get the same error: Failed while installing Seam 2.0 But the details are: String index out of range -1 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4160385#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...