Persistencia com ejb utilizando netbeans

Boas pessoal, comecei a estudar recentemente ejb. Estou a tentar implemntar o crud utilizando o netbeans versãi 7.3, só que quando executo o projecto me é apresentado o seguinte erro:

deploy?DEFAULT=/Users/Vanilson/NetBeansProjects/RH/RH-war/build/web&name=RH-war&contextroot=/RH-war&force=true failed on GlassFish Server 3.1.2

Error occurred during deployment: Exception while deploying the app [RH-war] : Cannot resolve reference Local ejb-ref name=CargoFacade,Local 3.x interface =rh.ejb.session.CargoFacadeLocal,ejb-link=null,lookup=,mappedName=,jndi-name=,refType=Session. Please see server.log for more details. /Users/Vanilson/NetBeansProjects/RH/RH-war/nbproject/build-impl.xml:1064: The module has not been deployed.