I've been using Xwiki 1.8 for about 2-3 months now and I really like it. Unfortunately, my server crashed. I backup the HSQLDB database everyday. Now, I'm trying to install Xwiki on a different computer and point it toward one of the copies of my database, but I'm having lot of problems. I've tried it with Xwiki 2.0, 1.9 and 1.8. I'm running Tomcat 5.5.27 and java 1.6.0_14. The real problem is reading my old database. If I don't change the hibernate.cfg.xml, xwiki will create a new HSQLDB database just fine (except that it's empty). But when I do modify the hibernate file to point to my database, I get lots of errors. Here's the snippet from my hibernate file: <!-- HSQLDB configuration. Uncomment if you want to use HSQLDB and comment out other database configurations. Note that the database will be created automatically if it doesn't already exist. --> <property name="connection.url">jdbc:hsqldb:file:/travis/www/xwiki/xwikiHSQLDatabase;shutdown=true</property> <property name="connection.username">sa</property> <property name="connection.password"></property> <property name="connection.driver_class">org.hsqldb.jdbcDriver</property> <property name="dialect">org.hibernate.dialect.HSQLDialect</property> <property name="connection.provider_class">com.xpn.xwiki.store.DBCPConnectionProvider</property> <property name="connection.pool_size">2</property> <property name="statement_cache.size">2</property> <mapping resource="xwiki.hbm.xml"/> <mapping resource="feeds.hbm.xml"/> And here's the error I get from my browser (Firefox): HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3001 in 3: Cannot load class com.xpn.xwiki.store.migration.hibernate.XWikiHibernateMigrationManager from param xwiki.store.migration.manager.class Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: Could not parse mapping document from resource xwiki.hbm.xml org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433) 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:145) com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111) 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 com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3001 in 3: Cannot load class com.xpn.xwiki.store.migration.hibernate.XWikiHibernateMigrationManager from param xwiki.store.migration.manager.class Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: Could not parse mapping document from resource xwiki.hbm.xml com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:326) com.xpn.xwiki.XWiki.getXWiki(XWiki.java:387) 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:145) com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:111) 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) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 logs. Apache Tomcat/5.5.27 I've been trying to fix this for 2 days now and I'm losing hope that I can recover my Xwiki. Can anyone please help? I've tried searching the mailing list archives, google, the installation documenation, the upgrade documentation, but I haven't found a solution. I haven't really modified the xwiki installation much at all. I've just been using xwiki "as is". Still Hoping, travis