There is no default persistence unit in this deployment

[ma_ria]

hallo liebe foris,

ich bin zum ersten mal hier und versuch mich grad an einer j2ee anwendung.

ich bekomme beim deployen auf dem jboss 4.2 folgende fehlermeldung:

11:52:05,937 WARN  [ServiceController] Ignoring request to stop nonexistent serv
ice: jboss.j2ee:ear=candi.ear,jar=candi.jar,name=AuthenticationBean,service=EJB3
...
11:52:05,953 WARN  [ServiceController] Problem starting service jboss.j2ee:servi
ce=EJB3,module=candi.jar
java.lang.RuntimeException: Illegal @PersistenceUnit on private javax.persistenc
e.EntityManager de.package.candi.persistence.CopyOfCandiPersitenceBean.em :The
re is no default persistence unit in this deployment.
        at org.jboss.injection.PersistenceUnitHandler.handleFieldAnnotations(Per
sistenceUnitHandler.java:247)
...
11:52:06,031 INFO  [EJB3Deployer] Deployed: file:/D:/Programme/jboss-4.2.2.GA/se
rver/default/tmp/deploy/tmp56209candi.ear-contents/candi.jar
11:52:06,046 INFO  [TomcatDeployer] deploy, ctxPath=/candi, warUrl=.../tmp/deplo
y/tmp56209candi.ear-contents/candi-exp.war/
11:52:06,203 INFO  [EARDeployer] Started J2EE application: file:/D:/Programme/jb
oss-4.2.2.GA/server/default/deploy/candi.ear
11:52:06,203 ERROR [URLDeploymentScanner] Incomplete Deployment listing:

--- MBeans waiting for other MBeans ---
ObjectName: jboss.j2ee:service=EJB3,module=candi.jar
  State: FAILED
  Reason: java.lang.RuntimeException: Illegal @PersistenceUnit on private javax.
persistence.EntityManager de.package.candi.persistence.CopyOfCandiPersitenceBe
an.em :There is no default persistence unit in this deployment.

--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: jboss.j2ee:service=EJB3,module=candi.jar
  State: FAILED
  Reason: java.lang.RuntimeException: Illegal @PersistenceUnit on private javax.
persistence.EntityManager de.package.candi.persistence.CopyOfCandiPersitenceBe
an.em :There is no default persistence unit in this deployment.


11:52:06,281 INFO  [Http11Protocol] Starting Coyote HTTP/1.1 on http-127.0.0.1-8
080
11:52:06,312 INFO  [AjpProtocol] Starting Coyote AJP/1.3 on ajp-127.0.0.1-8009
11:52:06,328 INFO  [Server] JBoss (MX MicroKernel) [4.2.2.GA (build: SVNTag=JBos
s_4_2_2_GA date=200710221139)] Started in 21s:500ms

was bedeutet "there is no default persistence unit in this deployment" ?
ichhab gelsesen, dass bei jboss per default die hsqldb eingerichtet ist.
need help

[ma_ria]

so ich hab eine mysql datenbank doch noch zum laufen gebracht
hab mich an folgende anleitung gehalten:
http://ltiwww.epfl.ch/Eclipse/LoadingJBoss.html

hoffe es hilft jemandem
schöne grüße
maria