Bye

I have a problem deploying on JBOSS 6 an application; the console show this message:

Caused by: java.lang.RuntimeException: Neither any mapped-name/lookup/jndi-name specified nor any ResourceProvider could process resource-env-ref named env/springService of type org.krams.tutorial.service.ArithmeticService

What does it mean? What shall I do?

Thank you very much