tomcat配置问题 急！！！！！！ 谁能告诉我哪出错了？

问题是：
2009-3-3 22:02:02 org.apache.tomcat.util.digester.Digester startElement
严重: Begin event threw exception
java.lang.ClassNotFoundException: org.apache.catalina.storeconfig.StoreConfigLifecycleListener
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:204)
at org.apache.tomcat.util.digester.Rule.begin(Rule.java:152)
at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1275)
at org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1376)
at org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1214)
at org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1806)
at org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1182)
at org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1081)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
at org.apache.catalina.startup.Catalina.load(Catalina.java:489)
at org.apache.catalina.startup.Catalina.load(Catalina.java:523)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:259)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:411)
2009-3-3 22:02:02 org.apache.catalina.startup.Catalina load
警告: Catalina.start using conf/server.xml: 配置文件： <Context path="/KST"  debug="0" 
reloadable="true" crossContext="true"> 
<Resource name="jdbc/kst" auth="Container"
            type="javax.sql.DataSource" username="root" password=""
            driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/kst?characterEncoding=gb2312"
            maxActive="1000" maxIdle="500"/>
</Context> 
      </Host>    </Engine>  </Service></Server>