If you are on Windows, Oracle often stores configuration in the Registry. Press Win + R , type regedit , and hit Enter.
set REPORTS_PATH=%ORACLE_HOME%\reports\mesg;%ORACLE_HOME%\reports\sql If you are on Windows, Oracle often stores
If you have multiple versions of Oracle installed (e.g., an 11g Database and 12c Middleware), the system might be getting confused. Open your variable. If you are on Windows