Inline schemas cannot be used in a new interface

If you import a WSDL file which has an inline schema (i.e. the definitions of your business objects occurs in a schema element inside the WSDL rather than in a separate, imported schema document file) you will not be able to use these business object definitions in a new interface. This problem is described more fully in the Technote here.

An alternative solution to this is to extract the inline elements when you import your WSDL document as I posted here a few days ago.