Home » Developer & Programmer » Forms » 12545: target host or object does not exist (Oracle 8, Developer 6)
12545: target host or object does not exist [message #306399] Fri, 14 March 2008 01:43 Go to next message
jeer
Messages: 37
Registered: February 2008
Location: pakistan
Member
I am usinng Oracle 8 and Developer 6. Ihave installed Developer 6 on client computer and copied TNSNAMES.ORA from database server to client's ADMIN folder. when i try to login using a form, the is an error that "ORA-12545: target host or object does not exist ".

Please guide me to resolve this problem.

Thanks
Re: 12545: target host or object does not exist [message #306410 is a reply to message #306399] Fri, 14 March 2008 02:17 Go to previous messageGo to next message
Littlefoot
Messages: 20896
Registered: June 2005
Location: Croatia, Europe
Senior Member
Account Moderator
This is what Oracle says:
Quote:
ORA-12545: Connect failed because target host or object does not exist

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

Action: 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.
Re: 12545: target host or object does not exist [message #306548 is a reply to message #306410] Fri, 14 March 2008 11:32 Go to previous message
solisdeveloper
Messages: 48
Registered: March 2008
Location: Mexico
Member
I agree.
It's got to be the TNSNAMES check the connection parameters.

Also make sure that if you have many database instances in your server they are all contained in your TNSNAMES file.
It happend to me once, we have 2 instances ,ADMI and OPER, so when I moved from one computer to another, the new one didn't have OPER in the file.
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