Oracle Message ORA-12158 - TNS: could not initialize parameter subsystem

ERRORTNS: could not initialize parameter subsystem
CAUSEUnable to locate parameter file.
ACTIONVerify that a valid parameter file exists, and is readable.

749041Workaround in BR*Tools for ORA-12158 on Tru64 Unix
514205Corrections in BR*Tools version 6.20
403706Corrections in BR*Tools Version 6.10
680046Corrections in BR*Tools Version 6.40