ORA-24024: Internal error in DBMS_AQ_IMP_INTERNAL.string [string] [string]
Cause : Internal Error occured in the package DBMS_AQ_IMP_INTERNAL.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Internal error, call Oracle Support.
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.