i solved my problem, started to work with non-primitive types, now i’m using objects as parameter and return type. First i still couldn’t get the schema of the web service (reference.xsd). Then i figured out that i was working with the web services (those i already wrote) on virtual iis (just executing the web service project). That was wrong ofcourse,then i put all my web services (web service project) under iis->default web site by publishing my web service project: project->publish.
now i got all the schemas,hope this help someone ele.