title: My viewcontroller does not conform to GMSFetcherAutocompleteDelegate protocol
body: <p>I'm trying to build an app where I input text into a <code>textField</code> and get the auto predict that google provides with its Fetcher GooglePlaces API. I have copied the code and altered it for my app but I can not figure out what I am doing wrong. I am using Swift Xcode8 Beta 3.</p>
  
  <p>Please see my code below.</p>
  
  <pre><code>import UIKit
  import GooglePlaces
  import GoogleMaps
  
  class NewTripAddCitiesViewController: UIViewController {
  
      var fetcher: GMSAutocompleteFetcher?
      @IBOutlet var textView: UITextView!
      @IBOutlet var placesTextField: UITextField!
      @IBOutlet var addToTripLabel: UIButton!
      @IBOutlet var addCitiesLabel: UILabel!
  
      @IBAction func addPlaceToTable(_ sender: AnyObject) {
      }
  
      @IBAction func savePlaces(_ sender: AnyObject) {
      }
  
      override func viewDidLoad() {
          super.viewDidLoad()
  
          addCitiesLabel.text = "Please select which places you'd like to visit in \(tripCountry):"
          addToTripLabel.setTitle("Add to \"\(tripName)\"", for: [])
  
          self.view.backgroundColor = UIColor.white()
          self.edgesForExtendedLayout = []
  
          // Set bounds to inner-west Sydney Australia.
          let neBoundsCorner = CLLocationCoordinate2D(latitude: -33.843366, longitude: 151.134002)
          let swBoundsCorner = CLLocationCoordinate2D(latitude: -33.875725, longitude: 151.200349)
          let bounds = GMSCoordinateBounds(coordinate: neBoundsCorner, coordinate: swBoundsCorner)
  
          // Set up the autocomplete filter.
          let filter = GMSAutocompleteFilter()
          filter.type = .establishment
  
          // Create the fetcher.
          fetcher = GMSAutocompleteFetcher(bounds: bounds, filter: filter)
          fetcher!.delegate = self
  
          placesTextField = UITextField(frame: CGRect(x: 5.0, y: 0, width: self.view.bounds.size.width - 5.0, height: 44.0))
          placesTextField?.autoresizingMask = .flexibleWidth
          placesTextField?.addTarget(self, action: Selector(("textFieldDidChange:")), for: .editingChanged)
  
          textView = UITextView(frame: CGRect(x: 0, y: 45.0, width: self.view.bounds.size.width, height: self.view.bounds.size.height - 45.0))
          textView?.backgroundColor = UIColor(white: 0.95, alpha: 1.0)
          textView?.text = "No Results"
          textView?.isEditable = false
  
          self.view.addSubview(placesTextField!)
          self.view.addSubview(textView!)
      }
  
      func textFieldDidChange(placesTextField: UITextField) {
          fetcher?.sourceTextHasChanged(placesTextField.text!)
      }
  
      override func didReceiveMemoryWarning() {
          super.didReceiveMemoryWarning()
          // Dispose of any resources that can be recreated.
      }
  
  }
  
  extension NewTripAddCitiesViewController: GMSAutocompleteFetcherDelegate {
  
      func didAutocompleteWithPredictions(predictions: [GMSAutocompletePrediction]) {
          let resultsStr = NSMutableAttributedString()
          for prediction in predictions {
              resultsStr.append(prediction.attributedPrimaryText)
              resultsStr.append(AttributedString(string: "\n"))
          }
          textView?.attributedText = resultsStr
      }
  
      func didFailAutocompleteWithError(_ error: NSError) {
          textView?.text = error.localizedDescription
      }
  
  }
  </code></pre>