ORA-16252: Rebuild operation not permitted
Cause : The REBUILD operation is not permitted.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Only on a primary database that has failed to complete the LogMiner dictionary build may the REBUILD operation take place. Reissue the ACTIVATE LOGICAL STANDBY DATABASE command if it previously failed to complete.
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.