title: iOS app validation warning. Will my app get rejected?
body: <p>I am trying to upload my app to iTunes Connect. Prior to the recent iOS 7 and Xcode 5 update I had no issues, but now when I try to validate the app binary it gives me the following error:</p>
  
  <pre><code>The app references non-public selectors in Payload/AppName.app/AppName: startIndex
  </code></pre>
  
  <p>I have looked all over my code for <code>startIndex</code> but I'm not able to find it. Has anyone faced a similar problem? Will Apple reject my app because of this? </p>