I had the same problem. I just copied my tnsnames and sqlnet files from
$ORACLE_HOME/network/admin (I believe that's the right path) into my
Developer directory under the net80 folder etc. that did the trick for
me.
Ross wrote:
>
> Thanks.
>
> How to setup tnsnames.ora file. Also how to get Error help files.
>
> "Ron Reidy" <rereidy_at_indra.com> wrote in message
> news:3C33C26F.2D856327_at_indra.com...
> > Ross wrote:
> > >
> > > Hi,
> > >
> > > I have installed Oracle 8i Enterprise edition on Windows 2000 OS. Also I
> > > have installed Forms/Reports 6i.
> > > when I start sql *plus and insert username/password then I get following
> > > error. I can not connect to the database. I checked in the "Task
> Manager",
> > > that the oracle.exe is running.
> > >
> > > ERROR:
> > > ORA-12203: TNS: Unable to connect to destination.
> > >
> > > I tried various username/Password but same error. It logs me out after
> three
> > > attempt.
> > >
> > > Any advise,
> > >
> > > Ross
> > $ oerr tns 12203
> > 12203, 00000, "TNS:unable to connect to destination"
> > // *Cause: Invalid TNS address supplied or destination is not listening.
> > // This error can also occur because of underlying network transport
> > // problems.
> > // *Action: Verify that the service name you entered on the command line
> > // was correct. Ensure that the listener is running at the remote node
> > and
> > // that the ADDRESS parameters specified in TNSNAMES.ORA are correct.
> > // Finally, check that all Interchanges needed to make the connection
> > are
> > // up and running.
> >
> > You do not have tnsnames.ora set up correctly. Also look at sqlnet.ora.
> > --
> > Ron Reidy
> > Oracle DBA
Received on Wed Jan 02 2002 - 20:56:49 CST
