error deploying jar file on server

[Steve Jerome]

Hi,
When i try to deploy my jar file on server i'm getting following error.I've tried jboss4.0.4,4.0.5,4.2.1.but i cudn't solve the problem.I'm trying to execute the entity bean example program from mikalai notes.I'm able to run stateless & stateful session beans.

15:18:45,734 ERROR [URLDeploymentScanner] Incomplete Deployment listing:

--- MBeans waiting for other MBeans ---
ObjectName: jboss.j2ee:jar=calculator.jar,name=PersistentCalculatorBean,service=EJB3
State: NOTYETINSTALLED
I Depend On:
jboss.j2ee:jar=calculator.jar,name=StatelessCalculatorBean,service=EJB3
persistence.units:unitName=calculator

--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: persistence.units:unitName=calculator
State: NOTYETINSTALLED
Depends On Me:
jboss.j2ee:jar=calculator.jar,name=PersistentCalculatorBean,service=EJB3

[Steve Jerome]

I solved the problem.The problem was because of typo error.I created META_INF dir instead of META-INF.