related to jetspeed2

[be12dune09a]

I have succesfully instaled jetspeed2 but I can not run it .It gives the following exception :

exception

javax.servlet.ServletException: Failed to initalize jetspeed. org.apache.jetspeed.exception.JetspeedException: Jetspeed Initialization exception!
org.apache.jetspeed.engine.JetspeedServlet.doGet(JetspeedServlet.java:207)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

org.apache.jetspeed.exception.JetspeedException: Jetspeed Initialization exception!
org.apache.jetspeed.engine.JetspeedEngine.start(JetspeedEngine.java:149)
org.apache.jetspeed.engine.JetspeedServlet.init(JetspeedServlet.java:147)
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:603)
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1118)
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
org.apache.catalina.startup.Catalina.start(Catalina.java:536)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:324)
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:275)
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

Can someone help me.
thanks