title: How to clear service reference credentials at visual studio
body: <p>Web service url have security login and when I try to add service reference to my project at visual studio, never prompt me for login credentials and directly show error message as below.</p>
  <p>Anyone can help how to clear login credentails?</p>
  <p><a href="https://i.stack.imgur.com/5getA.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p>Thank you.</p>