Cannot login to Oracle using PL/SQL Developer

[Atul Jain]

I installed PL/SQL Developer Licensed version on my laptop. I also have installed Oracle - OraClient10g_home1 for SQL Plus.

Whenever I try to login using PL/SQL developer, it gives me the following error message:-
============================
Initializaiton error
SQL*Net not properly installed

OracleHomeKey: SOFTWARE\ORACLE
OracleHomeDir:
============================

The problem is that I am able to login using SQL Plus to the same database.

I also checked under PL/SQL developer --> Tools --> Preferences --> Oracle Home (empty is autodetected) and its blank therefore it should automatically detect it, but somehow its not able to read the home path.

Is there some other setting that I am missing ? Any help would be appreciated.

 

[sledge]

You need to install SQL *Net:

Whenever I try to login using PL/SQL developer, it gives me the following error message:-
============================
Initializaiton error
SQL*Net not properly installed

 

[Marco Kalter]

The problem is that I am able to login using SQL Plus to the same database.

This indicates that SQL*Plus is from an Oracle Home that is not registered (in the Oracle regiistry) on your PC. Could this be the case?