title: Unrecognized selector sent to instance while trying to open apple maps app in my app
body: <p>I am trying to open up apple maps within the map that I created, and in the process of doing so I am getting an error saying that "unrecognized selector send to instance". I am using arc so there should be no memory management problem. Here is the code I wrote in viewDidLoad. I created a button and added a selector to it..</p>
  
  <pre><code>UIButton *appleMapsButton = [[UIButton alloc] init];
  appleMapsButton.frame = CGRectMake(100, 100, 200, 200);
  appleMapsButton.backgroundColor = [UIColor redColor];
  [appleMapsButton addTarget:self action:@selector(appleMapsClicked:) forControlEvents:UIControlEventTouchUpInside];
  [mapView addSubview:appleMapsButton];
  </code></pre>
  
  <p>Here is the action method:</p>
  
  <pre><code>-(void)appleMapsClicked{
  
  CLLocationCoordinate2D endingCoord = CLLocationCoordinate2DMake(lat, lng);
  MKPlacemark *endLocation = [[MKPlacemark alloc] initWithCoordinate:endingCoord addressDictionary:nil];
  MKMapItem *endingItem = [[MKMapItem alloc] initWithPlacemark:endLocation];
  
  NSMutableDictionary *launchOptions = [[NSMutableDictionary alloc] init];
  [launchOptions setObject:MKLaunchOptionsDirectionsModeDriving forKey:MKLaunchOptionsDirectionsModeKey];
  
  [endingItem openInMapsWithLaunchOptions:launchOptions];
  }
  </code></pre>
  
  <p>Here is the error I am getting in the debugger area:</p>
  
  <p>-[MapViewController appleMapsClicked:]: unrecognized selector sent to instance 0x176564d0
  2016-04-15 16:10:39.394 Restaurant[1081:220822] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[MapViewController appleMapsClicked:]: unrecognized selector sent to instance 0x176564d0'</p>