Can't Select Source Model for WSDL Import After Importing DDL

Using Teiid designer 7.7 plug in in Eclipse 3.7.2. Created soruce model and then imported DDL. Selected import wsdl into source model procedure. Created connection profile that points to url for WSDL.Changed Source Model created in previous step. Status - "Existing model xxxx.xmi has connection profile for different wsdl. Continued to to next dialog. In the Procedure Defintion dialog added element name in Schema Contents window. Invalid Name error displayed - "The character "-" is not allowed...." Is there a workaround for the name restrictions? Also why is this status message displayed when I select an existing model in soruce definition dialog? If I select the radio button to generate legacy create and extract functions, the import completes successfully.