OK I fixed this by editing a couple of feature.xml files. D:\Development\Seam2\eclipse\features\org.jboss.ide.eclipse.as.feature_1.0.0.200706241629-nightly: | | | <requires> | <import plugin="org.eclipse.core.runtime"/> | <import plugin="org.eclipse.debug.core"/> | <import plugin="org.eclipse.core.resources"/> | <import plugin="org.eclipse.jdt.launching"/> | <import plugin="org.eclipse.jdt.core"/> | <import plugin="org.eclipse.jst.server.core" version="1.0.102" match="equivalent"/> | <import plugin="org.eclipse.jst.server.generic.core" version="1.0.100" match="equivalent"/> | <import plugin="org.eclipse.wst.server.core" version="1.0.102" match="equivalent"/> | <import plugin="org.eclipse.core.boot"/> | <import plugin="org.eclipse.debug.ui"/> | <import plugin="org.eclipse.jst.j2ee"/> | <import plugin="org.eclipse.jst.j2ee.core" version="1.1.0" match="equivalent"/> | <import plugin="org.eclipse.ant.ui"/> | <import plugin="org.eclipse.ant.core"/> | <import plugin="org.eclipse.ui.externaltools"/> | <import plugin="org.eclipse.wst.common.project.facet.core" version="1.1.0" match="compatible"/> | <import plugin="org.eclipse.jst.common.project.facet.core" version="1.1.0" match="compatible"/> | <import plugin="org.eclipse.wst.xml.core" version="1.1.0" match="compatible"/> | <import plugin="org.eclipse.ui"/> | <import plugin="org.eclipse.ui.forms"/> | <import plugin="org.eclipse.jst.server.ui"/> | <import plugin="org.eclipse.wst.server.ui" version="1.0.102" match="compatible"/> | <import plugin="org.eclipse.wst.server.ui.doc.user"/> | <import plugin="org.eclipse.jst.server.generic.ui"/> | <import plugin="org.eclipse.jdt.debug"/> | <import plugin="org.eclipse.jdt.debug.ui"/> | <import plugin="org.eclipse.ui.console"/> | <import plugin="org.eclipse.text"/> | <import plugin="org.eclipse.jface.text"/> | <import plugin="org.eclipse.ui.views"/> | <import plugin="org.eclipse.ui.editors"/> | <import plugin="org.eclipse.ui.workbench.texteditor" version="3.2.0" match="compatible"/> | <import plugin="org.eclipse.wst.xml.ui"/> | <import plugin="org.eclipse.wst.sse.ui"/> | <import plugin="org.eclipse.wst.sse.core" version="1.1.0" match="compatible"/> | <import plugin="org.eclipse.jdt.ui" version="3.2.0" match="compatible"/> | <import plugin="org.eclipse.core.filesystem"/> | <import plugin="org.eclipse.ui.ide" version="3.2.0" match="compatible"/> | <import plugin="org.eclipse.jst.server.tomcat.core"/> | <import plugin="org.eclipse.jst.servlet.ui"/> | <import plugin="org.eclipse.jst.j2ee.ui"/> | <import plugin="org.eclipse.wst.web.ui"/> | <import plugin="org.eclipse.wst.common.frameworks.ui"/> | <import plugin="org.eclipse.jst.server.tomcat.ui"/> | <import plugin="org.eclipse.core.variables"/> | <import plugin="org.eclipse.search"/> | <import plugin="org.eclipse.jst.ws"/> | <import plugin="org.eclipse.jst.ws.ui"/> | <import plugin="org.eclipse.jst.ws.consumption"/> | <import plugin="org.eclipse.jst.ws.consumption.ui"/> | <import plugin="org.eclipse.jst.ws.axis.creation.ui"/> | <import plugin="org.eclipse.wst.ws"/> | <import plugin="org.eclipse.wst.ws.ui"/> | <import plugin="org.jboss.ide.eclipse.firstrun"/> | </requires> | note the changes of match="equivalent" to match="compatible" also removed the org.eclipse.jem import element from D:\Development\Seam2\eclipse\features\org.jboss.ide.eclipse.feature_2.0.0.200706241629-nightly Don't know if my environment will now disappear in a puff of smoke when I do any serious work. But at least I can checkout my code from subversion now :) Cheers J View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059084#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...