Hi,

I am having this problem sometimes. Sometimes Eclipse (version 3.2) can
load the MyFaces library nicely and work fine, and sometimes it could
not load it. Can someone explain why it happens?

Thanks in advance
Manik
p.s. The debug log:

Dec 19, 2006 5:02:46 PM org.apache.catalina.core.AprLifecycleListener
lifecycleEvent
INFO: The Apache Tomcat Native library which allows optimal performance
in production environments was not found on the java.library.path:
D:\Program
Files\Java\jdk1.5.0_07\bin;.;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program
Files\Intel\DMIX
Dec 19, 2006 5:02:47 PM org.apache.coyote.http11.Http11BaseProtocol
init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Dec 19, 2006 5:02:47 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1141 ms
Dec 19, 2006 5:02:47 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Dec 19, 2006 5:02:47 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.17
Dec 19, 2006 5:02:47 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Dec 19, 2006 5:02:47 PM org.apache.catalina.core.StandardContext
listenerStart
SEVERE: Error configuring application listener of class
org.apache.myfaces.webapp.StartupServletContextListener
java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener
    at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
    at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
    at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3677)
    at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4187)
    at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
    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:585)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Dec 19, 2006 5:02:47 PM org.apache.catalina.core.StandardContext
listenerStart
SEVERE: Skipped installing application listeners due to previous
error(s)
Dec 19, 2006 5:02:47 PM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart