Java Development Tools

When I deploy a an OWC application I got an exception like below:

What I exactly need to do resolve the issue.

oracle.mds.config.MDSConfigurationException: MDS-01335: namespace "/oracle/adf/portlet" mapped to metadata-store-usage "MAR_TargetRepos" but its definition was not found in MDS configuration.
at oracle.mds.config.PConfig.populateNamespaceConfigList(PConfig.java:730)
at oracle.mds.config.PConfig.loadFromBean(PConfig.java:636)
at oracle.mds.config.PConfig.<init>(PConfig.java:461)
at oracle.mds.config.MDSConfig.loadFromBean(MDSConfig.java:690)
at oracle.mds.config.MDSConfig.loadFromElement(MDSConfig.java:750)
at oracle.mds.config.MDSConfig.<init>(MDSConfig.java:405)
at oracle.mds.core.MDSInstance.getMDSConfigFromDocument(MDSInstance.java:1949)
at oracle.mds.core.MDSInstance.createMDSInstanceWithCustomizedConfig(MDSInstance.java:1126)
at oracle.mds.core.MDSInstance.getOrCreateInstance(MDSInstance.java:536)
at oracle.adf.share.config.ADFMDSConfig.parseADFConfiguration(ADFMDSConfig.java:130)
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:597)
at oracle.adf.share.config.ADFConfigImpl.getResultFromComponent(ADFConfigImpl.java:451)
at oracle.adf.share.config.ADFConfigImpl.getConfigObject(ADFConfigImpl.java:516)
at oracle.adf.share.config.ADFConfigImpl.getConfigObject(ADFConfigImpl.java:499)
at oracle.adf.share.config.ADFConfigImpl.getMDSInstance(ADFConfigImpl.java:555)
at oracle.adf.share.config.ADFConfigImpl.getMDSInstance(ADFConfigImpl.java:550)
at oracle.adf.share.config.ADFContextMDSConfigHelperImpl.getMDSInstance(ADFContextMDSConfigHelperImpl.java:260)
at oracle.adf.share.ADFContext.getMDSInstanceAsObject(ADFContext.java:1064)
at oracle.adf.share.http.ServletADFContext.initialize(ServletADFContext.java:432)
at oracle.adf.share.http.ServletADFContext.initThreadContext(ServletADFContext.java:349)
at oracle.adf.share.http.ServletADFContext.initThreadContextIfNeeded(ServletADFContext.java:282)
at oracle.webcenter.collab.forum.internal.view.ForumGatewayInitializer.contextDestroyed(ForumGatewayInitializer.java:89)
at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:482)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.EventsManager.notifyContextDestroyedEvent(EventsManager.java:200)
at weblogic.servlet.internal.WebAppServletContext.destroy(WebAppServletContext.java:3108)
at weblogic.servlet.internal.ServletContextManager.destroyContext(ServletContextManager.java:240)
at weblogic.servlet.internal.HttpServer.unloadWebApp(HttpServer.java:457)
at weblogic.servlet.internal.WebAppModule.destroyContexts(WebAppModule.java:1401)
at weblogic.servlet.internal.WebAppModule.deactivate(WebAppModule.java:476)
at weblogic.application.internal.flow.ModuleStateDriver$2.previous(ModuleStateDriver.java:188)
at weblogic.application.utils.StateMachineDriver.previousState(StateMachineDriver.java:148)
at weblogic.application.utils.StateMachineDriver.previousState(StateMachineDriver.java:138)
at weblogic.application.internal.flow.ModuleStateDriver.deactivate(ModuleStateDriver.java:71)
at weblogic.application.internal.flow.ScopedModuleDriver.deactivate(ScopedModuleDriver.java:206)
at weblogic.application.internal.flow.ModuleListenerInvoker.deactivate(ModuleListenerInvoker.java:124)
at weblogic.application.internal.flow.DeploymentCallbackFlow$2.previous(DeploymentCallbackFlow.java:417)
at weblogic.application.utils.StateMachineDriver.previousState(StateMachineDriver.java:148)
at weblogic.application.utils.StateMachineDriver.previousState(StateMachineDriver.java:138)
at weblogic.application.internal.flow.DeploymentCallbackFlow.deactivate(DeploymentCallbackFlow.java:91)
at weblogic.application.internal.flow.DeploymentCallbackFlow.deactivate(DeploymentCallbackFlow.java:83)
at weblogic.application.internal.BaseDeployment$2.previous(BaseDeployment.java:635)
at weblogic.application.utils.StateMachineDriver.previousState(StateMachineDriver.java:148)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:40)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:206)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:53)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:569)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:140)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:106)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:323)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:844)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1253)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:440)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:163)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:181)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:67)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)


Please any one help?

Thanks,
Raj