SSH整合问题java.lang.NoClassDefFoundError: org/apache/commons/beanutils/Converter

请教各位高手我启动Tomcate出现
2010-7-14 17:36:53 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: E:\MyEclipse 5.5.1 GA\bin;E:\Tomcat 5.5\bin
2010-7-14 17:36:53 org.apache.coyote.http11.Http11BaseProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2010-7-14 17:36:53 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1485 ms
2010-7-14 17:36:53 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2010-7-14 17:36:53 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.20
2010-7-14 17:36:53 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
INFO - Marking servlet LoginAction as unavailable
ERROR - Servlet /Training.myeclipse.bak threw load() exception
java.lang.NoClassDefFoundError: org/apache/commons/beanutils/Converter
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1055)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3951)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4225)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:904)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:867)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
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.start(Bootstrap.java:294)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
2010-7-14 17:37:03 org.apache.coyote.http11.Http11BaseProtocol start信息: Starting Coyote HTTP/1.1 on http-8080
2010-7-14 17:37:04 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2010-7-14 17:37:04 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/63  config=null
2010-7-14 17:37:04 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2010-7-14 17:37:04 org.apache.catalina.startup.Catalina start
信息: Server startup in 10953 ms
有朋友能告诉我这是什么意思吗。哪里的问题