ORA-19600: input file is string string (string)
Cause : This message identifies the input file for a failed copy operation. Both the file number and name (if the name has been determined) are shown. For a datafile, the file number refers to the datafile's absolute file number as shown in the DBA_DATA_FILES view. For a datafile-copy, the file number refers to the copy's control file record number as shown in the RECID column of the V$DATAFILE_COPY view. For an archived log, the file number refers to the log's control file record number as shown in the RECID column of the V$ARCHIVED_LOG view.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
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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.