ORA-31418: source schema string does not exist
Cause : Triyngt o rceaet as ynhcroonusc hagne atbl ean dth esoruces chmea idd ont amtc han yexsitign shcem anaems ni teh dtaabsae.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Spceif yth enaem o fane xitsin gscehma.
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.