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Problem when deploying a jbpm web app into jboss
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created by <a href="https://community.jboss.org/people/crazyindark">Hongsi Hu</a> in <i>jBPM</i> - <a href="https://community.jboss.org/docs/DOC-48734">View the full document</a>
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<div class="jive-rendered-content"><p>Hi all</p><p>    I'm a newbie to jBPM & jBoss,</p><p>    I used jBPM installer and tested it well, but then I try to develop a web-app myself, so I download this <a class="" href="https://community.jboss.org/people/bpmn2user/blog/2011/09/21/jbpm5-web-example#comment-12030">https://community.jboss.org/people/bpmn2user/blog/2011/09/21/jbpm5-web-example#comment-12030</a> example.  I made war package and put it into jboss deployment folder,  but it keeps failing.  The log says: </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>16:47:04,169 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC00001: Failed to start service jboss.deployment.unit."jbpm5webexample.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."jbpm5webexample.war".INSTALL:<strong> Failed to process phase INSTALL of deployment "jbpm5webexample.war"</strong></p><p>          at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final]</p><p>          at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_17]</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_17]</p><p>          at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_17]</p><p>Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: <strong>JBAS011446: Failed to add persistence unit service for org.jbpm.task</strong></p><p>          at org.jboss.as.jpa.processor.PersistenceUnitDeploymentProcessor.deployPersistenceUnit(PersistenceUnitDeploymentProcessor.java:383)</p><p>          at org.jboss.as.jpa.processor.PersistenceUnitDeploymentProcessor.addPuService(PersistenceUnitDeploymentProcessor.java:258)</p><p>          at org.jboss.as.jpa.processor.PersistenceUnitDeploymentProcessor.handleWarDeployment(PersistenceUnitDeploymentProcessor.java:194)</p><p>          at org.jboss.as.jpa.processor.PersistenceUnitDeploymentProcessor.deploy(PersistenceUnitDeploymentProcessor.java:118)</p><p>          at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final]</p><p>          ... 5 more</p><p>Caused by: org.jboss.msc.service.DuplicateServiceException:<strong> Service jboss.persistenceunit."jbpm5webexample.war#org.jbpm.task" is already registered</strong></p><p>          at org.jboss.msc.service.ServiceRegistrationImpl.setInstance(ServiceRegistrationImpl.java:154) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceControllerImpl.startInstallation(ServiceControllerImpl.java:227) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceContainerImpl.install(ServiceContainerImpl.java:560) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceTargetImpl.install(ServiceTargetImpl.java:201) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceControllerImpl$ChildServiceTarget.install(ServiceControllerImpl.java:2228) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceTargetImpl.install(ServiceTargetImpl.java:201) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceControllerImpl$ChildServiceTarget.install(ServiceControllerImpl.java:2228) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.msc.service.ServiceBuilderImpl.install(ServiceBuilderImpl.java:307) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]</p><p>          at org.jboss.as.jpa.processor.PersistenceUnitDeploymentProcessor.deployPersistenceUnit(PersistenceUnitDeploymentProcessor.java:374)</p><p>          ... 9 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>How to resolve this<strong> "jbpm5webexample.war#org.jbpm.task" is already registered </strong>problem?  Pls help me on this!</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Regards</p><p>Hu Hongsi</p></div>
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