I checked your wsdls from your first said. The first and the changed, there are differents. Some of them, for example, add namespace like xmlns:vprop="http://docs.oasis-open.org/wsbpel/2.0/varprop" and xmlns:wsdl1, maybe done by bpel editor. But from your steps, I don't find what step can add these namespaces. The other of them, for example, partnerlink type. it should not be done by bpel editor. The partnerlinke type only can be done by you through the wsdl editor, by hand, right?
For your errors, I think they are caused by the namespaces, wsdl, wsdl1 because wsdl and wsdl1 are same namespace, so cause the error that are no input and output in the wsdl editor design view.