Database does not exit

Hi, when i tried to install opencart, the first step they asked for my localhost, user name, password and dabase name, I have input that and then when go to step 2, they asked for user name and password for administration, I guess I do not have set up user name and password,  I put my own password and then press conitnue button I got error message said "Error: Database does not exist!"

what did i missed! and how can i solve that!

please help thanks.

AM

did you create a database and a database user on your server?