ORA-19601: output file is string string (string)
Cause : This message identifies the output file for a failed copy operation. The fields are as described in message 19600. When creating a new datafile copy, its control file record number may not have been determined when the message is printed. In that case, the record number shown is zero.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
See other error message.
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.