When I try to create a new WM with AMW-Wizard - I get an error message:
Problems with the file "/RIF/metamodels/10-02-02.cmof"
Package with uri "http://schema.org.spec/MOF/2.0/CMOF.xml" not found.
(platform:/ressource/RIF/metamodels/10-02-02.cmof,4,9,1)
the implementation is based on Ecore...
Your metamodel makes reference to an external resource that cannot be handled/found by the plugin, probably because it is in a different file.