ORA-12705: Cannot access NLS data files or

admin

ORA-12705: Cannotaccess NLS data files or invalid environment specified
Cause: Either an attempt was made to issue an ALTER SESSIONcommand with
an invalid NLS parameter or value; or the environment variable(s) NLS_LANG,
ORA_NLSxx, or ORACLE_HOME was incorrectly specified, therefore the NLS
data files cannot be located.
Action: Checkthe syntax of the ALTER SESSION command and the NLS
parameter, correct the syntax and retry the statement, or specify the correct
directory path/values in the environment variables.