Hi, I'm trying to install xwiki following all the steps included in http://platform.xwiki.org/xwiki/bin/view/AdminGuide/InstallationMySQL. I'm working with jboss and MySQL. * First I download xwiki-enterprise-web-1.9.3.war then, * I installed MySQL 5.1 in this step I created the Data base - mysql -u root -e "create database xwiki" - mysql -u root -e "grant all privileges on xwiki.* to xwiki@127.0.0.1 identified by 'xwiki'" - I included the MySQL JDBC Driver JAR in the WEB-INF/lib folder - I changed hibernate.xml with mysql properties * I installed jboss-4.0.5.GA - I tried to use a datasource but doesn't work for me, so I am working without it. As you see, I followed all the steps described in xwiki site, but I have many errors and I haven't done nothing different 16:47:20,204 INFO [DefaultLoadEventListener] Error performing load command org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xpn.xwiki.doc.XWikiDocument#104408758] 16:47:20,375 WARN [XWiki] Exception while getting wiki preference [macros_languages] java.lang.NullPointerException 16:47:20,469 WARN [XWiki] Exception while getting wiki preference [macros_velocity] java.lang.NullPointerException 16:47:20,547 WARN [XWiki] Exception while getting wiki preference [macros_groovy] java.lang.NullPointerException 16:47:42,032 WARN [XWiki] Exception while getting wiki preference [macros_mapping] java.lang.NullPointerException 16:47:43,313 INFO [DefaultLoadEventListener] Error performing load command org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xpn.xwiki.objects.classes.BaseClass#-629142642] 16:47:56,048 INFO [DefaultLoadEventListener] Error performing load command org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xpn.xwiki.doc.XWikiDocument#-1905796263] 16:47:56,439 WARN [XWiki] Exception while getting wiki preference [backlinks] java.lang.NullPointerException I supposed that all of this errors are happening because I have to install the *.xar files And then I got this error and that's all. I can't see nothing else. 16:48:03,158 INFO [STDOUT] Hibernate: select xwikidocum0_.XWD_ID as XWD1_0_0_, xwikidocum0_.XWD_FULLNAME as XWD2_0_0_, xwikidocum0_.XWD_NAME as XWD3_0_0_, xwikidocum0_.XWD_TITLE as XWD4_0_0_, xwikidocum0_.XWD_LANGUAGE as XWD5_0_0_, xwikidocum0_.XWD_DEFAULT_LANGUAGE as XWD6_0_0_, xwikidocum0_.XWD_TRANSLATION as XWD7_0_0_, xwikidocum0_.XWD_DATE as XWD8_0_0_, xwikidocum0_.XWD_CONTENT_UPDATE_DATE as XWD9_0_0_, xwikidocum0_.XWD_CREATION_DATE as XWD10_0_0_, xwikidocum0_.XWD_AUTHOR as XWD11_0_0_, xwik idocum0_.XWD_CONTENT_AUTHOR as XWD12_0_0_, xwikidocum0_.XWD_CREATOR as XWD13_0_0_, xwikidocum0_.XWD_WEB as XWD14_0_0_, xwikidocum0_.XWD_CONTENT as XWD15_0_0_, xwikidocum0_.XWD_VERSION as XWD16_0_0_, xwikidocum0_.XWD_CUSTOM_CLASS as XWD17_0_0_, xwikidocum0_.XWD_PARENT as XWD18_0_0_, xwikidocum0_.XWD_CLASS_XML as XWD19_0_0_, xwikidocum0_.XWD_ELEMENTS as XWD20_0_0_, xwikidocum0_.XWD_DEFAULT_TEMPLATE as XWD21_0_0_, xwikidocum0_.XWD_VALIDATION_SCRIPT as XWD22_0_0_, xwikidocum0_.XWD_COMMENT as XWD23_0 _0_, xwikidocum0_.XWD_MINOREDIT as XWD24_0_0_, xwikidocum0_.XWD_SYNTAX_ID as XWD25_0_0_, xwikidocum0_.XWD_HIDDEN as XWD26_0_0_ from xwikidoc xwikidocum0_ where xwikidocum0_.XWD_ID=? 16:48:03,173 ERROR [[action]] Servlet.service() for servlet action threw exception java.lang.NoSuchMethodError: org.apache.commons.lang.StringUtils.join(Ljava/util/Collection;Ljava/lan g/String;)Ljava/lang/Stri at com.xpn.xwiki.plugin.watchlist.WatchListPlugin.globalSearchDocuments(Wat chListPlugin.java:596) at com.xpn.xwiki.plugin.watchlist.WatchListPlugin.sanitizeWatchlists(WatchL istPlugin.java:629) at com.xpn.xwiki.plugin.watchlist.WatchListPlugin.init(WatchListPlugin.java :122) at com.xpn.xwiki.plugin.XWikiPluginManager.initPlugin(XWikiPluginManager.ja va:155) at com.xpn.xwiki.plugin.XWikiPluginManager.addPlugin(XWikiPluginManager.jav a:92) at com.xpn.xwiki.plugin.XWikiPluginManager.addPlugins(XWikiPluginManager.ja va:120) at com.xpn.xwiki.XWiki.preparePlugins(XWiki.java:1022) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:742) at com.xpn.xwiki.XWiki.<init>(XWiki.java:670) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:317) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:388) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:135) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion Filter.java:155) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java: 68) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor erFilter.java:295) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi ngFilter.java:112) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilte r.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAs sociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.j ava:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java :105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnecti onValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:1 48) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:86 9) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.proc essConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint .java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorker Thread.java:112) at java.lang.Thread.run(Thread.java:619) 16:48:13,001 INFO [IndexUpdater] deleting 8 docs from lucene index 16:48:13,189 INFO [IndexUpdater] deleted 8 docs from lucene index 16:48:13,220 INFO [IndexUpdater] indexing 8 docs to lucene index 16:48:13,236 INFO [STDOUT] Hibernate: select xwikidocum0_.XWD_ID as XWD1_0_0_, xwikidocum0_.XWD_FULLNAME as XWD2_0_0_, xwikid idocum0_.XWD_CONTENT_AUTHOR as XWD12_0_0_, xwikidocum0_.XWD_CREATOR as XWD13_0_0_, xwikidocum0_.XWD_WEB as XWD14_0_0_, xwikido _0_, xwikidocum0_.XWD_MINOREDIT as XWD24_0_0_, xwikidocum0_.XWD_SYNTAX_ID as XWD25_0_0_, xwikidocum0_.XWD_HIDDEN as XWD26_0_0_ 16:48:13,251 INFO [DefaultLoadEventListener] Error performing load command org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xpn.xwiki.doc.XWikiDocument#723512152] at org.hibernate.impl.SessionFactoryImpl$1.handleEntityNotFound(SessionFact oryImpl.java:375) at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventLi stener.java:143) at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoad EventListener.java:193) at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEvent Listener.java:101) at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878) at org.hibernate.impl.SessionImpl.load(SessionImpl.java:784) at com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore .java:641) at com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:20 9) at com.xpn.xwiki.doc.XWikiDocument.getTranslatedDocument(XWikiDocument.java :3676) at com.xpn.xwiki.plugin.lucene.IndexUpdater.runMainLoop(IndexUpdater.java:2 21) at com.xpn.xwiki.plugin.lucene.IndexUpdater.run(IndexUpdater.java:117) at java.lang.Thread.run(Thread.java:619) ........ I hope that someone can help me! Thanks in advance! Carolina Ramirez P