Netbeans 5.5.1 Visual Web Application + Tomcat 5.5.17

Pessoal ao iniciar alguns teste com o NetBeans e o Visual Web + Tomcat de cara eu tenho o seguinte erro ao subir o tomcat pelo netbeans:

23/07/2007 11:36:46 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.deployApps(HostConfig.java:493)

at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1204)

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)