ORA-08263: ora_addr: cannot free listener address
Cause : The listener nameserver entry could not be freed
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Additional information gives nameserver's returned status. Contact your customer support representative.
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.