EJB3部署在Jboss4.2的有关问题，jar包中存在为什么找不到

EJB3部署在Jboss4.2的问题，jar包中存在为什么找不到？
18:00:52,094 ERROR [URLDeploymentScanner] Incomplete Deployment listing:

--- MBeans waiting for other MBeans ---
ObjectName: jboss.j2ee:jar=MyEntityBean.jar,name=PersonDAOBean,service=EJB3
  State: NOTYETINSTALLED
  I Depend On:
  persistence.units:unitName=foshanshop

--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: persistence.units:unitName=foshanshop
  State: NOTYETINSTALLED
  Depends On Me:
  jboss.j2ee:jar=MyEntityBean.jar,name=PersonDAOBean,service=EJB3


------解决方案--------------------------------------------------------
这两个object相互引用或依赖，取消其中一个的引用或依赖就可以了