启动就报503，我用的jdk1.7 date文件也有

Question

HTTP ERROR: 503

org.unidal.lookup.LookupException: Component(org.unidal.web.lifecycle.RequestLifecycle) lookup failure. details: Unable to lookup component 'org.unidal.web.lifecycle.RequestLifecycle', it could not be started.
      role: org.unidal.web.lifecycle.RequestLifecycle
  roleHint: mvc
classRealm: plexus.core
-----------------------------------------------------
realm =    plexus.core
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
Number of foreign imports: 0

-----------------------------------------------------

RequestURI=/cat/r

Caused by:

javax.servlet.UnavailableException: org.unidal.lookup.LookupException: Component(org.unidal.web.lifecycle.RequestLifecycle) lookup failure. details: Unable to lookup component 'org.unidal.web.lifecycle.RequestLifecycle', it could not be started.
      role: org.unidal.web.lifecycle.RequestLifecycle
  roleHint: mvc
classRealm: plexus.core
-----------------------------------------------------
realm =    plexus.core
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
Number of foreign imports: 0

-----------------------------------------------------

	at org.mortbay.jetty.servlet.ServletHolder.makeUnavailable(ServletHolder.java:406)
	at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:442)
	at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:263)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
	at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:643)
	at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
	at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1234)
	at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
	at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:460)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
	at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
	at org.mortbay.jetty.Server.doStart(Server.java:222)
	at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
	at org.unidal.test.jetty.JettyServer.startServer(JettyServer.java:96)
	at com.dianping.cat.TestServer.main(TestServer.java:17)

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Answer 1

遇到一样的问题，请问解决了吗？如何解决？