I cannot publish nor export any ESB archives.

I get several errors:

Dragging an .esb file to a Deploy only server or AS 5 gives me:
Invalid matching rules used: 4.7/4

At deploy:
java.lang.NullPointerException
at org.jboss.ide.eclipse.as.core.server.internal.DeployableServer.getRuntime(DeployableServer.java:169)
at org.jboss.ide.eclipse.as.core.server.internal.DeployableServer.getDeployFolder(DeployableServer.java:117)
at org.jboss.ide.eclipse.as.core.publishers.PublishUtil.getDeployPath(PublishUtil.java:102)
at org.jboss.ide.eclipse.as.core.publishers.JstPublisher.fullPublish(JstPublisher.java:104)
at org.jboss.ide.eclipse.as.core.publishers.JstPublisher.publishModule(JstPublisher.java:93)
at org.jboss.ide.eclipse.as.core.publishers.LocalPublishMethod.publishModule(LocalPublishMethod.java:71)
at org.jboss.ide.eclipse.as.core.server.internal.DeployableServerBehavior.publishModule(DeployableServerBehavior.java:65)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publishModule(ServerBehaviourDelegate.java:948)
at org.eclipse.wst.server.core.model.ServerBe

And export I simply couldn't get to work!

Which combination is supposed to work !?