Need your help bady! I just finished installation of XE 2.1.1. Mysql5.x + tomcat5.x + linux(unknown, may be unix) Error info: javax.servlet.ServletException: Servlet execution threw an exception com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:152) com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:117) com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68) com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112) root cause java.lang.NoSuchFieldError: fFeatures org.apache.xerces.parsers.XML11NonValidatingConfiguration.<init>(Unknown Source) org.apache.xerces.parsers.XML11NonValidatingConfiguration.<init>(Unknown Source) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) java.lang.reflect.Constructor.newInstance(Constructor.java:494) java.lang.Class.newInstance0(Class.java:350) java.lang.Class.newInstance(Class.java:303) org.xwiki.xml.internal.DefaultXMLReaderFactory.createXMLReader(DefaultXMLReaderFactory.java:81) org.xwiki.rendering.internal.parser.wikimodel.xhtml.XWikiXMLReaderFactory.createXMLReader(XWikiXMLReaderFactory.java:49) org.xwiki.rendering.internal.parser.WikiModelXHTMLParser.createWikiModelParser(WikiModelXHTMLParser.java:143) org.xwiki.rendering.internal.parser.wikimodel.AbstractWikiModelParser.parse(AbstractWikiModelParser.java:132) org.xwiki.rendering.internal.parser.wikimodel.AbstractWikiModelParser.parse(AbstractWikiModelParser.java:97) org.xwiki.rendering.internal.parser.WikiModelHTMLParser.parse(WikiModelHTMLParser.java:67) com.xpn.xwiki.doc.XWikiDocument.parseContent(XWikiDocument.java:5738) com.xpn.xwiki.doc.XWikiDocument.getRenderedTitle(XWikiDocument.java:843) com.xpn.xwiki.plugin.lucene.IndexData.<init>(IndexData.java:72) com.xpn.xwiki.plugin.lucene.DocumentData.<init>(DocumentData.java:52) com.xpn.xwiki.plugin.lucene.IndexUpdater.add(IndexUpdater.java:320) com.xpn.xwiki.plugin.lucene.IndexUpdater.onEvent(IndexUpdater.java:408) org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:269) org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:243) com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1346) com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1287) com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1282) com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:3062) com.xpn.xwiki.XWiki.initializeMandatoryClasses(XWiki.java:790) com.xpn.xwiki.XWiki.initXWiki(XWiki.java:761) com.xpn.xwiki.XWiki.<init>(XWiki.java:684) com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:321) com.xpn.xwiki.XWiki.getXWiki(XWiki.java:402) com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135) com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:627) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:152) com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:117) com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68) com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112) This is my page: http://secure10.olemiss.edu/xwiki-enterprise-web-2.1.1/bin/view/Main/ Before I installed it on our web server, I made a local installation. It worked well. Environment is different though. -- View this message in context: http://n2.nabble.com/error-on-First-time-run-Need-your-help-badly-tp4291746p... Sent from the XWiki- Users mailing list archive at Nabble.com.