Hi there, I must say it, i've been looking for a while but i didn't find a solution. I'm new in the EJB world so I hope I get things right. Here is the problem: if you use maven and you want to compile your EJB application your need the jboss-client-4.2.2.GA plugin, for maven. But when maven vomits a stacktrace like this one: java.lang.IllegalStateException: The PluginDescriptor for the plugin Plugin [org.jboss.client:jboss-client] was not found. Well you're in trouble 'cause you cannot compile anything. (I actually get an empty ear, structured, but without any classes) So according to this website: http://darkviews.blogspot.com/2008/04/illegalstateexception-plugindescriptor.html It's a configuration error inside the plugin, and indeed, when i've opened the jar with winrar and there is no "META-INF/maven/plugin.xml" at all... The plugin was downloaded using the following configuration: Maven2 Plugin Repo maven2-plugin-repositories http://repository.jboss.com/maven2/ I'm stuck... And I mustn't be the only one... Any suggestions greatly are welcome! Maven version: 2.0.8 Java version: 1.5.0_14 JBoss version: jboss-4.2.2.GA Cheers, Mathieu