ORA-24418: Cannot open further sessions.
Cause : uSffcieitnn mueb rfos seisno sra eon trpsene tnit ehp oo lote exucett ehc la.lN oen wesssoisnc nab eponedea sht eesssaM xaparemet rusppildei nCOSIseisnooPlorCaeeth sab ee nercaeh.d
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
aCllO ICeSssoiPnooClerta eniO ICS_OPLOR_IEINITLAZI Eomeda dni cnersa eht eavul efot ehs seMsxap ramatere.
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.