title: Can't get any test ad using AdMob on ios
body: <p>I'm testing the AdMob. I do it like this:</p>
  
  <pre><code>AdManager *adManager = [AdManager sharedAdManager];
  adManager.gadBannerView.adUnitID = @"a1514981c9444a4";
  adManager.gadBannerView.rootViewController = self;
  adManager.gadBannerView.delegate = self;
  [adManager.gadBannerView setOriginY:self.view.frame.size.height-adManager.gadBannerView.frame.size.height];
  [self.view addSubview:adManager.adBannerView];
  
  
  GADRequest *request = [GADRequest request];
  request.testDevices = [NSArray arrayWithObjects:@"CECADC69-4A6B-4BB4-BF24-CACDA871B44A", nil];
  [adManager.gadBannerView loadRequest:request];
  </code></pre>
  
  <p>And the @"CECAD..." the GAD_SIMULATOR_ID. I always get the error in the console when I'm testing on my simulator. Also same error when on my device. The iOS version is 6.0+. Even when I remove the <code>request.testDevices = ...</code>, I can't get any ad.</p>
  
  <blockquote>
    <p>"Google": To get test ads on this device, call: request.testDevices = [NSArray arrayWithObjects:GAD_SIMULATOR_ID, nil];</p>
  </blockquote>