TNS-12224

Error: TNS-12224: TNS:no listener

Causa: The connection request could not be completed because the listener is not running.

Acción: Ensure that the supplied destination address matches one of the addresses used by the listener. Compare the TNSNAMES.ORA entry with the appropriate LISTENER.ORA file (or TNSNAV.ORA if the connection is to go by way of an Interchange). Start the listener on the remote machine.