OWB11g ORA-00955 in Repository Assistant

Question

I´m just starting an installation of OWB11g and running the Repository Assistant in order to create workspaces, users, etc. in the default OWBSYS schema;
I get a disgusting ;-) error at the end: "java.sql.SQLException: ORA-00955: name is already used by an existing object"
!!Please, any idea about it will be wellcome!!.
May the OWBSYS schema be corrupted? In that case, Is there any way to create another OWBSYS schema or clean it?
The dafault Warehouse Builder schema (OWBSYS) has already been unlocked:
SQL> ALTER USER OWBSYS ACCOUNT UNLOCK;
SQL> ALTER USER OWBSYS IDENTIFIED BY <pass>;
Document reference: http://download.oracle.com/docs/cd/B28359_01/owb.111/b31280/install_rep02.htm
Thanks in advance,
Javier Sánchez Ramírez
Genasys II Spain, S.A.
www.genasys.com
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Answer 1

Hi,
I too am experiencing this error when trying to configure a repository. I enter all the SYS details and for the OWB a/c. There was mention of invalid characters in the password , we use '-' , would this cause a problem.
Also, I am using an Oracle XE database for the repository, is there any limitation on this? Or do I need a full 10g instance?
Many thanks
Gary Revell.