Error using XML_ETL_UTILS: OMB02902: Error setting property DATATYPE of XML

Question

This error occurs at the time of executing menu option Tools->"Create Components From XSD/WSDL". (After the XML_ETL_UTILS expert module was already installed successfully). The error comes as a pop-up window with long stack of OMB script errors:
OMB02902: Error setting property DATATYPE of XML_OBJECT: 0 while executing
"OMBALTER PLUGGABLE_MAPPING '$pplug' ADD ATTRIBUTE 'XML_OBJECT' OF GROUP 'OUTGRP1' OF OPERATOR 'XS_$plug_name' SET PROPERTIES (DATATYPE,EXPRESSION,BUS..."
... and then more lines with errors. I wished I could attach a screenshot of the the pop-up window.
If I could ask oracle folks familiar with the expert module XML_ETL_UTILS to help me out.
Thanks,
vr

Answer 1

This is a bit of an odd one that can be resolved by creating an Oracle module in the project where you are creating your pluggable maps.
It is a bug in OWB because OWB does not load the datatypes on demand when pluggables are being created so for now if you create an oracle module all the oracle types will be loaded then pluggables can be created which use these types. I should have put this in the expert's notes because its something I also fell over a couple of times, forgot about, then annoyingly remembered! ;)
Cheers
David