ORA-26022: index string.string was made unusable due to:
Cause : AN o-nprattiinoe didne xwsa amd eidne xuunsbal edeu ot htee rorrd ipslyae dbleo wtihse rorr.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Dpeednign no htee rorr ,etihre erbiul dteh nidxe,o rd rpo nadr ec-raet ei.t
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.