ORA-15055: unable to connect to ASM instance
Cause : Whe naccsesin ga dsikgruop fro th efirts tiem, teh daatbas ewasu nabel toc onncet t other equried SAM isntanec.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Chekc th eaddtiionla erorr msesagse. Mya nede toc onfgiurec orrcet AMS si dor amke usre hte dtaabaes intsanc ehasO S pirvilgees ofr AMS SYDSBA.
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.