title: Property 'allowIDFACollection' not found on object of type '__strong id' Google Analytics iOS
body: <p>I have implemented Google Analytic in my app,I would like to use Display Feature of Google Analytics which is explained here <a href="https://developers.google.com/analytics/devguides/collection/ios/v3/display-features#overview" rel="nofollow">https://developers.google.com/analytics/devguides/collection/ios/v3/display-features#overview</a> </p>
  
  <p>I am using the same code as describe in doc </p>
  
  <pre><code>id tracker = [[GAI sharedInstance] defaultTracker];
  tracker.allowIDFACollection = YES;
  </code></pre>
  
  <p>But its giving me the error  <strong>Property 'allowIDFACollection' not found on object of type '__strong id'</strong></p>
  
  <p>I have also linked the libAdIdAccess.a and AdSupport.framework,
  but the error is still there</p>