我使用Ambari安装zeppelin notebook时,出现这种错误,求大神帮忙解决ERROR [2016-12-27 15:03:17,247] ({main} ZeppelinServer.java[main]:114) - Error while running jettyServerjavax.servlet.ServletException: Resource class org.apache.zeppelin.server.ZeppelinServer can not be instantiated due to InvocationTargetException