title: Facebook Insights shows both Client and App Version as "unknown" for iOS
body: <p>I've integrated FB insight on my iOS app. According to FB documents:</p>
  
  <blockquote>
    <p>You can pinpoint events coming from a version under development (vs. one that's in production) by choosing the App Version dropdown as shown in the image above. This will filter the events shown to that version. (<strong>The App Version for your app will be logged automatically from the version stored in the iOS app's bundle</strong>.) You can similarly filter by Event Name.</p>
  </blockquote>
  
  <p>Ref. URL  : <a href="https://developers.facebook.com/docs/ios/app-events#testing" rel="nofollow">FB Insight integration</a></p>
  
  <p>But for my app, both <strong><em>Client</em></strong> and <strong><em>App Version</em></strong> filed shows <strong>Unknown</strong> for all the Insight events. Do I need to perform any separate API Call for this?</p>
  
  <p>Thank you,</p>
  
  <p>Akhil</p>