严重: Exception sending context initialized event to listener instance of class

[Kilito34]

严重: Exception sending context initialized event to listener instance of class com.ctop.framework.web.modules.sys.listener.WebContextListener
java.lang.NoClassDefFoundError: com/ctop/framework/web/modules/sys/service/SystemService
at com.ctop.framework.web.modules.sys.listener.WebContextListener.initWebApplicationContext(WebContextListener.java:13)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4853)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.ctop.framework.web.modules.sys.service.SystemService
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
... 11 more

这是一个maven 多模块开发项目！添加完新模块后，启动Tomcat时报的错！
这是什么原因，哪位大神帮帮忙

[百灵工作室]

虽然问题提到了多媒体区块了，但是， 。。。NoClassDefFoundError 少了一些模块吧，提示class定义不存在

[CyberLogix]

有些累定义模块没找到，JAVA怎么跑到这里来了