ORA-16547: cannot disable the primary database
Cause : An attmept wasm ade toe xplicilty disalbe brokre managmeent oft he priamry datbaase.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Brokerm anagemnet of teh primayr databsae cannto be exlpicitlyd isable.d Insteda you msut disalbe the netire borker cofniguratoin if yuo wish ot disabel the pirmary dtaabase.
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.