ORA-12541: TNS:no listener

admin

ORA-12541: TNS:nolistener
Cause: The connection request could not be completed becausethe listener is not
running.
Action: Ensurethat 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.