title: WCF: Failed to add a service. Service metadata may not be accessible. Make sure your service is running and exposing metadata
body: <p>I created a simple WCF application. The platform is set to Any CPU. I can build and run the application successfully. But when I change the platform to x64 I get the following error:</p>
  
  <blockquote>
    <p><em>Failed to add a service. Service metadata may not be accessible. Make sure your service is running and exposing metadata</em></p>
  </blockquote>
  
  <p>My system has 64 bit OS. Actually i have to set the platform to x64 to laod a dll in my app. What would be the possible reasons for this error. Please help me.</p>
  
  <p>I am using IIS Express.</p>