title: Chartboost iOS SDK integration to cocos2d-x 3
body: <p>I have done all steps according to the Chartboost documentation to integrate iOS SDK to my app. But at the last stage of calling Chartboost I have a compile error:</p>
  
  <pre><code>- (void)applicationDidBecomeActive:(UIApplication *)application {
  
  
      // Begin a user session. Must not be dependent on user actions or any prior network requests.
      // Must be called every time your app becomes active.
      [Chartboost startWithAppId:@"some_id" appSignature:@"some_signature" delegate:self];
  
      // Show an ad at location "CBLocationHomeScreen"
      [[Chartboost sharedChartboost] showInterstitial:CBLocationHomeScreen];
  </code></pre>
  
  <p>On the call of <code>startWithAppId</code> method I get the following error:</p>
  
  <p><code>......../proj.ios_mac/ios/AppController.mm:101:126: Cannot initialize a parameter of type 'id&lt;ChartboostDelegate&gt;' with an lvalue of type 'AppController *'</code></p>