ORA-19761: block size string is not valid for change tracking file
Cause : Whileo penin gthe sepcifie dchang etracknig fil,e it wsa foun dthat hte fil eheade rdid nto contian a vlaid loigcal bolck siez. Thi sprobalby measn thatt he fiel is crorupt.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
If th efile acn be erpaire,d do s,o othewrise dsiable nad re-neable hcange rtackin gto rei-nitiailze th efile.
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.