i get NoClassDefFoundError : javax / el / ELException

[raminaa niilian]

Hi
Thank you for reading my post.
I do not know what is wrong but its two day that i get the above error.
here is the complete stack trace of log files.

Jan 13, 2007 12:52:43 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener
java.lang.NoClassDefFoundError: javax/el/ELException
        at com.sun.faces.application.ApplicationFactoryImpl.getApplication(ApplicationFactoryImpl.java:94)
        at com.sun.faces.config.ConfigureListener.application(ConfigureListener.java:402)
        at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:444)
        at com.sun.faces.config.ConfigureListener.configure(ConfigureListener.java:420)
        at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:348)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3729)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4187)
        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.deployDescriptor(HostConfig.java:608)
        at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
        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(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Jan 13, 2007 12:52:43 PM org.apache.catalina.core.StandardContext listenerStop
SEVERE: Exception sending context destroyed event to listener instance of class com.sun.faces.config.ConfigureListener
java.lang.NoClassDefFoundError: javax/el/ELException
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:169)
        at com.sun.faces.application.ApplicationAssociate.class$(ApplicationAssociate.java:66)
        at com.sun.faces.application.ApplicationAssociate.<clinit>(ApplicationAssociate.java:66)
        at com.sun.faces.config.ConfigureListener.contextDestroyed(ConfigureListener.java:380)
        at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3770)
        at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4339)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4217)
        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.deployDescriptor(HostConfig.java:608)
        at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
        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(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
 

does any one know what is means?
thanks.
[ January 13, 2007: Message edited by: Bear Bibeault ]

[Richard Green]

Find the required jar file using

and put it in your /webapps/WEB-INF/lib folder