Error deploying Web application

Question

Hello Everyone, i have a problem with my web application that is not able to be deployed.
the first time i deployed the application everything worked correctly i performed the contex lookup with no problem as was able to connect to the EJB application, i performed some changes, and now everytime i tried to deploy again the application i get this error
[#|2010-02-12T23:03:34.661+0100|INFO|sun-appserver9.1|javax.enterprise.system.tools.deployment|_ThreadID=23;_ThreadName=Thread-434;Servlet;WebServiceInterface;http://vmlinux:8024/WebServiceInterface/WebServiceInterface;|DPL5306:Servlet Web Service Endpoint [WebServiceInterface] listening at address [http://vmlinux:8024/WebServiceInterface/WebServiceInterface]|#]
[#|2010-02-12T23:03:38.107+0100|SEVERE|sun-appserver9.1|javax.enterprise.system.tools.deployment|_ThreadID=23;_ThreadName=Thread-434;_RequestID=3610621f-da38-477d-b37a-088311a00a42;|Exception occured in J2EEC Phase
com.sun.enterprise.deployment.backend.IASDeploymentException: Deployment Error -- Could not resolve a persistence unit corresponding to the persistence-context-ref-name [com.testing.myEJBapplication.ReferenceServiceLocalBean/entityManager] in the scope of the module called [product/servers/glassfish/domains/domain1/applications/j2ee-modules/WebServiceInterface]. Please verify your application.
     at com.sun.enterprise.deployment.BundleDescriptor.findReferencedPUsViaPCRefs(BundleDescriptor.java:702)
     at com.sun.enterprise.deployment.WebBundleDescriptor.findReferencedPUs(WebBundleDescriptor.java:722)
     at com.sun.jdo.spi.persistence.support.ejb.ejbc.PersistenceProcessor.getAllPersistenceUnitDescriptors(PersistenceProcessor.java:171)
     at com.sun.jdo.spi.persistence.support.ejb.ejbc.PersistenceProcessor.processApplication(PersistenceProcessor.java:132)
     at com.sun.jdo.spi.persistence.support.ejb.ejbc.DeploymentEventListenerImpl.processApplication(DeploymentEventListenerImpl.java:211)
     at com.sun.jdo.spi.persistence.support.ejb.ejbc.DeploymentEventListenerImpl.processEvent(DeploymentEventListenerImpl.java:172)
     at com.sun.jdo.spi.persistence.support.ejb.ejbc.DeploymentEventListenerImpl.notifyDeploymentEvent(DeploymentEventListenerImpl.java:122)
     at com.sun.enterprise.deployment.backend.DeploymentEventManager.notifyDeploymentEvent(DeploymentEventManager.java:79)
     at com.sun.enterprise.deployment.backend.ModuleDeployer.handlePostDeployEvent(ModuleDeployer.java:636)
     at com.sun.enterprise.deployment.backend.ModuleDeployer.postDeploy(ModuleDeployer.java:625)
     at com.sun.enterprise.deployment.backend.ModuleDeployer.doRequestFinish(ModuleDeployer.java:188)
     at com.sun.enterprise.deployment.phasing.J2EECPhase.runPhase(J2EECPhase.java:191)
     at com.sun.enterprise.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:108)
     at com.sun.enterprise.deployment.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:919)
     at com.sun.enterprise.deployment.phasing.PEDeploymentService.deploy(PEDeploymentService.java:279)
     at com.sun.enterprise.deployment.phasing.PEDeploymentService.deploy(PEDeploymentService.java:788)
     at com.sun.enterprise.management.deploy.DeployThread.deploy(DeployThread.java:187)
     at com.sun.enterprise.management.deploy.DeployThread.run(DeployThread.java:223)
|#]
any ideas for this?? Thank you in advance regards
Edited by: White_Merovingian on Feb 13, 2010 5:55 AM

Answer 1

yeah these stacktraces are big scary blobs of text, but somewhere hidden among all the nonsense there is always the little piece of information you need:
"Could not resolve a persistence unit corresponding to the persistence-context-ref-name [com.testing.myEJBapplication.ReferenceServiceLocalBean/entityManager]"
So you are referring to a persistence unit in ReferenceServiceLocalBean that does not seem to exist. Do you have your persistence.xml deployed in the META-INF directory of the EJB module? Does it contain a persistence unit with the name that is declared in the bean?