Rob says he saw this kind of error before, when he was missing plugin.xml,

"Cannot find navigator content extension" when starting a local server after setting up a remote server ------------------------------------------------------------------------------------------------------- Key: JBIDE-18258 URL: https://issues.jboss.org/browse/JBIDE-18258 Project: Tools (JBoss Tools) Issue Type: Bug Components: jmx, server Affects Versions: 4.2.0.CR1 Reporter: Martin Malina Assignee: Rob Stryker Priority: Critical Fix For: 4.2.0.CR1 When I set up a local server, then a remote server and then I start the local server, I get errors: {code} !ENTRY org.eclipse.ui.navigator 4 0 2014-09-04 11:46:26.700 !MESSAGE Cannot find navigator content extension (using triggerPoints) for object "org.jboss.modules.Main [22362]" parent path: "R/". Check that you have an expression for this object in a navigatorContent triggerPoints or enablement. !ENTRY org.eclipse.ui.navigator 4 0 2014-09-04 11:46:26.703 !MESSAGE Cannot find navigator content extension (using triggerPoints) for object "org.jboss.modules.Main [22362]" parent path: "R/". Check that you have an expression for this object in a navigatorContent triggerPoints or enablement. !ENTRY org.eclipse.ui.navigator 4 0 2014-09-04 11:46:26.895 !MESSAGE Cannot find navigator content extension (using triggerPoints) for object "org.jboss.modules.Main [22362]" parent path: "R/". Check that you have an expression for this object in a navigatorContent triggerPoints or enablement. {code} I'm not exactly sure how this works, but strangely, the errors are thrown even after I remove the remote server. But they did not occur before I created the remote server. So perhaps it has something to do with the existence of the remote system and not really the remote server itself? I don't know.