SKOS Core and Protege

Dear Protege developers,

I'm having problems using the SKOS Core RDF vocabulary [1] in Protege.  Specifically, using protege 3.1.1 build 216, when I try to create a new project of type 'RDF files' from existing sources, using a local copy of http://www.w3.org/2004/02/skos/core as the classes file, and an empty RDF/XML file as the instances file, I get the following error message:

system classes cannot be changed: http://www.w3.org/1999/02/22-rdf-syntax-ns#Resource
Fatal error: java.lang.IllegalArgumentException: broader not unique: SimpleInstance(broader of [Cls(owl:TransitiveProperty, FrameID(1:10131))]) 

Is this a SKOS Core problem or a protege problem?  I know others have had problems using SKOS Core with earlier releases of protege.

Cheers,

Alistair.

[1] http://www.w3.org/TR/swbp-skos-core-spec

Received on Monday, 22 August 2005 15:05:39 UTC