Error in Migration from SQL Server to Oracle latest version

I am following the steps in the notes
http://www.oracle.com/technology/tech/migration/workbench/files/omwb_getstarted.html#capt
I was doing great (connected and captured SQL Server db and Oracle etc) till I ran the Generation Script which is giving me errors since I do not have DBO/admin permissions to create users.
I wish to create the database within an existing user's database schema - that is in my schema since I do not have privileges to create users.
What lines do I change in the script to make this happen.
PLEASE HELP

You should remove the create user ..., grant ... and connect ... statements from the script. All you should keep are the DDLs for creating the objects: tables, views, triggers, sequences, SPs ...
But why don't you download Oracle Database Express Edition (http://www.oracle.com/technology/software/products/database/xe/index.html) and play with it. You can install it easily on your machine and then you can create as many users/schemas as you want as you are the DBA :).

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