title: Validation error while uploading Appx file to windows store
body: <p>I'm trying to upload Appx file to windows store but it throws the below error</p>
  
  <pre><code>1046: We're only certifying apps that target Windows Phone OS 6.3.1 at
  this time. Submit your app again when you hear from us that we're ready
  to support this version.
  </code></pre>
  
  <p>I also manually changed the <code>&lt;OSMinVersion&gt;</code> and <code>&lt;OSMaxVersionTested</code>> version to 6.3.1 in my <code>package.appxmanifest</code> file but it still produces the same error. </p>
  
  <p>I build the <code>.appx</code> file from visual studio 2012 professional and visual studio 2012 ultimate.Both the packages produces same error while uploading in windows store.</p>