ORA-23451: flavor string already defined for object group "string"."string"
Cause : The given object group already contains a (possibly unpublished) definition of the specified flavor.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Check the spelling of the flavor name. Check for an unpublished flavor of the desired name.
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.