title: _placesClient lookUpPlaceID neither executing nor showing any error
body: <p>I am using a Place Id to get details of a place i am following this 
  <a href="https://developers.google.com/places/ios/place-details" rel="nofollow">https://developers.google.com/places/ios/place-details</a></p>
  
  <pre><code>NSString * placeID ;//= place.placesId;
  placeID=place.placesId;
  
  [_placesClient lookUpPlaceID:place.placesId callback:^(GMSPlace *place,     NSError *error) {
      if (error != nil) {
          NSLog(@"Place Details error %@", [error localizedDescription]);
          return;
      }
  
      if (place != nil) {
          NSLog(@"Place name %@", place.name);
          NSLog(@"Place address %@", place.formattedAddress);
          NSLog(@"Place placeID %@", place.placeID);
          NSLog(@"Place attributions %@", place.attributions);
      } else {
          NSLog(@"No place details for %@", placeID);
      }
  }];
  </code></pre>
  
  <p>But the code is not executing and jumping of the statement </p>
  
  <pre><code>[_placesClient lookUpPlaceID:place.placesId callback:^(GMSPlace *place, NSError *error) {
      ...
  }];
  </code></pre>
  
  <p>Any clues ,i have also initialised _place client as follows</p>
  
  <pre><code>_placesClient = [[GMSPlacesClient alloc] init];
  </code></pre>