It was necessary to: rm -rf ./features/org.jboss.ide.eclipse.as.feature_1.0.0.GA \ | ./plugins/org.jboss.ide.eclipse.as.classpath.ui_1.0.0.GA.jar \ | ./plugins/org.jboss.ide.eclipse.as.ui_1.0.0.GA \ | ./plugins/org.jboss.ide.eclipse.as.ui.mbeans_1.0.0.GA.jar \ | ./plugins/org.jboss.ide.eclipse.as.classpath.core_1.0.0.GA.jar \ | ./plugins/org.jboss.ide.eclipse.as.core_1.0.0.GA Arrrrrggggggghhhhhhhhhh!!!!!!!!!!!!!!!!!!!!! Not again another case of Eclipse plugins getting the concepts of versioning wrong, by putting "GA" in the version="1.0.0.GA" string. Technically the nightly build is a later version than the GA build, it could have been far more correct to use "1.0.0.YYYYMMDDHHMM-GA" One thing the Eclipse versioning system does not do is make a distinction between alpha, beta, gamma, release, etc... domains. Then is might be possible to switch off all non-release quality plugins and/or understand that multiple online update sites maybe available. I now also get an error: An internal error occurred during: "Initializing Java Tooling". | org/jboss/ide/eclipse/as/core/server/IJBossServerRuntime On startup, but I can clearly see it inside: # jar -tvf ./plugins/org.jboss.ide.eclipse.as.core_1.0.0.200803280018-nightly/jbossascore.jar | grep JBoss | 568 Fri Mar 28 00:44:48 GMT 2008 org/jboss/ide/eclipse/as/core/server/IJBossServerConstants.class | 657 Fri Mar 28 00:44:48 GMT 2008 org/jboss/ide/eclipse/as/core/server/IJBossServerPublisher.class | 729 Fri Mar 28 00:44:48 GMT 2008 org/jboss/ide/eclipse/as/core/server/IJBossServerRuntime.class But the JBoss 5 adaptor is now listed but I am now able to advance past the selection of the JBoss 5 driver screen, the next button does nothing, the installed runtimes does not light up, I am not able go to workspace properties and create a new runtime of any version (i.e. neither 4.2 or 5 work). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4139544#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...