> Yes, that's a known bug which came up a little while ago. It is fixed in > the drafts http://samantha.oucs.ox.ac.uk:8080/srw1-1/ (XML Spy regarded > an extension of all as legal but it turns out it isn't!). Mono Web Services Description Language Utility Error: XmlSchema error: Ambiguous element label was detected: http://www.loc.gov/zing/srw/:stylesheet Related schema item SourceUri: file:///root/MonoDevelopProjects/srw_test/wsdl/srw-types.xsd, Line 91, Position 11. Mono complains about your drafts, but I don't see why as there is only one stylesheet element. Removing the stylesheet reference, it then goes on to complain about other ambiguous labels. Possibly to do with the extension? Rob