I have an sqldeveloper which is running fine. But when I installed Oracle client 10g which is needed by my 3rd party apps, it was messed out with ORA-12705.
I can not connect anymore to all the dbs I enrolled. I used tnsname connection method.
How would I reset the oracle_home and tnsname it used to point to the original?
Thanks a lot,
the problem is in the computer's regional settings.
You can add on sqldeveloper.conf the line:
*"us" if your region configuration is USA, "en" if is England, "es" if is spain .....
it worked for me.