开发会话Bean调用实体Bean时出现的错误！！！

[dalianzj]

我用的是jbuilder7+weblogic8.1,开发会话Bean调用实体Bean时出现下列错误：
java.rmi.RemoteException: Error in ejbCreate:; nested exception is:
javax.ejb.EJBException: Unable to find local user home in Activate; nested exception is: javax.naming.LinkException: [Root exception is javax.naming.NameNotFoundException: While trying to look up /app/ejb/EJBEntityTest.jar#Authors/local-home in /app/ejb/AuthorManager.jar#AuthorManager.; remaining name '/app/ejb/EJBEntityTest/jar#Authors/local-home']; Link Remaining Name: 'java:app/ejb/EJBEntityTest.jar#Authors/local-home'
at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:186)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:284)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:244)
at ejbtest.AuthorManager_g6hzow_EOImpl_811_WLStub.getAuthorInfo(Unknown Source)
at jsp_servlet.__index._jspService(__index.java:158)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1053)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:387)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:431)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6310)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3622)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2569)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: javax.ejb.EJBException: Unable to find local user home in Activate; nested exception is: javax.naming.LinkException: [Root exception is javax.naming.NameNotFoundException: While trying to look up /app/ejb/EJBEntityTest.jar#Authors/local-home in /app/ejb/AuthorManager.jar#AuthorManager.; remaining name '/app/ejb/EJBEntityTest/jar#Authors/local-home']; Link Remaining Name: 'java:app/ejb/EJBEntityTest.jar#Authors/local-home'
at ejbtest.AuthorManagerBean.ejbCreate(AuthorManagerBean.java:17)
at ejbtest.AuthorManager_g6hzow_Impl.ejbCreate(AuthorManager_g6hzow_Impl.java:135)
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:324)
at weblogic.ejb20.pool.StatelessSessionPool.createBean(StatelessSessionPool.java:172)
at weblogic.ejb20.pool.StatelessSessionPool.getBean(StatelessSessionPool.java:110)
at weblogic.ejb20.manager.StatelessManager.preInvoke(StatelessManager.java:140)
at weblogic.ejb20.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:130)
at weblogic.ejb20.internal.StatelessEJBObject.preInvoke(StatelessEJBObject.java:70)
at ejbtest.AuthorManager_g6hzow_EOImpl.getAuthorInfo(AuthorManager_g6hzow_EOImpl.java:29)
at ejbtest.AuthorManager_g6hzow_EOImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:166)
... 16 more
不只是什么原因，希望各位朋友能帮忙看看！！！