Privileges for registering an XML schema

Following the example in the "Using Oracle XML DB" I run:

BEGIN
DBMS_XMLSCHEMA.registerSchema(
SCHEMAURL => 'http://local_host:8080/xdb/documentation/MY_Schema.xsd', SCHEMADOC => bfilename('XML_FILES','MY_Schema.xsd'), LOCAL => TRUE,
GENTYPES => TRUE,
GENTABLES => TRUE,
CSID => nls_charset_id('WE8ISO8859P1')); END; And get:

ORA-31061: XDB error: DBMS_XDBZ.ENABLE_HIERARCHY
ORA-06512: at "XDB.DBMS_XDBZ0", line 131
ORA-06512: at "XDB.DBMS_XDBZ0", line 588
ORA-01031: insufficient privileges
ORA-06512: at "XDB.DBMS_XDBZ", line 37
ORA-06512: at line 1
ORA-06512: at "XDB.DBMS_XMLSCHEMA_INT", line 37
ORA-06512: at "XDB.DBMS_XMLSCHEMA", line 65
ORA-06512: at "XDB.DBMS_XMLSCHEMA", line 136
ORA-06512: at line 2

My user has the following privileges:

create table
create any directory
xdbadmin
create view
create type

MOS says that xdbadmin is the only privilege I need to run this stored procedure. What am I missing?

Thanks,
Peter Schauss

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