title: couldnt add service reference in visual studio
body: <p>I can get xml content of service via browser</p>
  
  <p>but somehow cant add as service referance in Visual Studio same link with ?wsdl extension. </p>
  
  <p>The error message in visual studio; </p>
  
  <blockquote>
    <p>The document at the url
    http://****?wsdl was not
    recognized as a known document type. The error message from each known
    type may help you fix the problem:
    - Report from 'XML Schema' is 'The root element of a W3C XML Schema should be  and its namespace should be
    '<a href="http://www.w3.org/2001/XMLSchema" rel="nofollow noreferrer">http://www.w3.org/2001/XMLSchema</a>'.'.
    - Report from 'DISCO Document' is 'Discovery document at the URL http://****?wsdl could not be
    found.'.</p>
  </blockquote>
  
  <p>how can I fix it ?</p>