GRAVE: Exception while invoking class org.glassfish.persistence.jpa.JPADeployer prepare method
java.lang.RuntimeException: Could not resolve a persistence unit corresponding to the persistence-unit-ref-name [VoiceMailProvider-ejbPU] in scope of the module called [/home/pepo/NetBeansProjects/VoiceMailProvider/VoiceMailProvider-ejb/build/jar/]. Please verify your application.
at com.sun.enterprise.deployment.BundleDescriptor.findReferencedPUsViaPURefs(BundleDescriptor.java:613)
at com.sun.enterprise.deployment.EjbBundleDescriptor.findReferencedPUs(EjbBundleDescriptor.java:891)
at org.glassfish.persistence.jpa.JPADeployer.prepare(JPADeployer.java:100)
at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:603)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:251)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:174)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:270)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$4.execute(CommandRunnerImpl.java:422)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:437)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:524)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:140)
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:313)
at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:180)
at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:166)
at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:100)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:208)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:752)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:660)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:911)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:164)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.NIOContext.execute(NIOContext.java:510)
at com.sun.grizzly.SelectorHandlerRunner.handleSelectedKey(SelectorHandlerRunner.java:357)
at com.sun.grizzly.SelectorHandlerRunner.handleSelectedKeys(SelectorHandlerRunner.java:257)
at com.sun.grizzly.SelectorHandlerRunner.doSelect(SelectorHandlerRunner.java:194)
at com.sun.grizzly.SelectorHandlerRunner.run(SelectorHandlerRunner.java:129)
at com.sun.grizzly.util.FixedThreadPool$BasicWorker.dowork(FixedThreadPool.java:379)
at com.sun.grizzly.util.FixedThreadPool$BasicWorker.run(FixedThreadPool.java:360)
at java.lang.Thread.run(Thread.java:619)
GRAVE: Exception while preparing the app