ORA-12705: Cannot access NLS data files or invalid environment

Question

The other day I got this annoying oracle error: ORA-12705: Cannot access NLS data files or invalid environment specified. Funny thing I wasn\'t trying to access NLS data fil

Answer 1

After addition of path in Environment variable of Oracle Instant client the Oracle SQLPLUSW goes to Oracle Instant client and for that client it required to set NLS LANG AS American_America.UTF8