ORA-17501: logical block size string is invalid
Cause : logical block size for oracle files must be a multiple of the physical block size, and less than the maximum
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
check INIT.ORA file parameters
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.