No Persistence provider for EntityManager named急急

Question

将jbpm6的一个demo整合到自己的scop项目中一直报错，在本地用main跑没问题，用ant打包到集成环境就有问题：不知道是什么原因，求大神帮忙：
javax.persistence.PersistenceException: No Persistence provider for EntityManager named org.jbpm.domain
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:69) ~[hibernate-jpa-2.0-api-1.0.1.Final.jar:1.0.1.Final]
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47) ~[hibernate-jpa-2.0-api-1.0.1.Final.jar:1.0.1.Final]
at com.ztenv.usms.bpm.service.AbstractKieServicesBase.configureServices(AbstractKieServicesBase.java:84) ~[?:?]
at com.ztenv.usms.bpm.KieServicesBase.init(KieServicesBase.java:51) ~[?:?]
at com.znv.icap.dcim.module.JbpmHotDeployProtocolModule.internalStart(JbpmHotDeployProtocolModule.java:22) ~[?:?]
at com.znv.module.AbstractModule.start(AbstractModule.java:42) ~[scop.system.jar:?]
at com.znv.module.ModuleHotDeployer.scanAddedOrUpdatedModules(ModuleHotDeployer.java:221) [scop.system.jar:?]
at com.znv.module.ModuleHotDeployer.access$100(ModuleHotDeployer.java:38) [scop.system.jar:?]
at com.znv.module.ModuleHotDeployer$1.run(ModuleHotDeployer.java:87) [scop.system.jar:?]

Answer 1

遇到错误“No Persistence provider for EntityManager named”
请检查persistence.xml是否在WEB-INF\classes\META-INF文件夹下！......
答案就在这里：错误No Persistence provider for EntityManager named
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