title: Unsupported Configuration: This file is set to build for a version older than the deployment target. Functionality may be limited
body: <p>Can anyone explain this warning? </p>
  
  <blockquote>
    <p>Unsupported Configuration: This file is set to build for a version older than the deployment target. Functionality may be limited.</p>
  </blockquote>
  
  <p>When my app was initially written a storyboard I tried was not supported. This made it necessary to manage multiple views entirely from code i.e. without using XIB files. So my app basically uses a MultiviewAppDelegate to switch between multiple views using a MultiviewViewController.</p>
  
  <p>It was written initially under iOS 5 and now runs on the Simulator (9.2) using an iPhone 6 Plus running iOS 9.</p>
  
  <p><a href="https://stackoverflow.com/posts/12398777/revisions">OrdoDei</a> helped me address a similar problem related to unused XIB files. My particular issue could be addressed <a href="https://stackoverflow.com/questions/33575252/ios-9-warnings-in-xcode-this-file-is-set-to-build-for-a-version-older-than-the">if my app used storyboards</a>. Most other problems with this particular warning seem to be related to networking which my app doesn't use. </p>
  
  <p>Has anyone else had to deal with a similar issue?</p>