In this post, you’ll learn more about the Oracle ErrorORA-12705: Cannot access NLS data files or invalid environment specified with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-12705: Cannot access NLS data files or invalid environment specified
Reason for the Error ORA-12705: Cannot access NLS data files or invalid environment specified
Either an attempt was made to issue an ALTER SESSION command 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.
How to fix the Error ORA-12705: Cannot access NLS data files or invalid environment specified ?
You can fix this error in Oracle by following the below steps
Check the 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.