Error: TNS-12545: Connect failed because target host or object does not exist
Causa: The address specified is not valid, or the program being connected to does not exist.
Acción: Ensure the ADDRESS parameters have been entered correctly; the most likely incorrect parameter is the node name. Ensure that the executable for the server exists (perhaps "oracle" is missing). If the protocol is TCP/IP, edit the TNSNAMES.ORA file to change the host name to a numeric IP address and try again.
por Julián ochoa | 02/12/2010 10:32:29
Revisar que los parámetros de los tnsnames esten correctos.