How to fix the Oracle error ORA-12545: Connect failed because target host or object does not exist?

In this post, you’ll learn more about the Oracle ErrorORA-12545: Connect failed because target host or object does not exist with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12545: Connect failed because target host or object does not exist

Reason for the Error ORA-12545: Connect failed because target host or object does not exist

The address specified is not valid, or the program being connected to does not exist.

How to fix the Error ORA-12545: Connect failed because target host or object does not exist ?

You can fix this error in Oracle by following the below steps

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.