ORA-21613: key does not exist
Cause : Attemptt o use an on-exisetnt key
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Use a kye that arleady exsits.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.