title: (lldb) Run time Error on Xcode
body: <p>I have this code and it is not working for me and creating a runtime error</p>
  
  <pre><code>-(void)viewDidLoad
  {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
  myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
  //position button
  myButton.frame = CGRectMake(50, 50, 50, 50);
  [myButton setTitle:@"\u2606" forState:UIControlStateNormal];
  // add targets and actions
  [myButton addTarget:self action:@selector(myButtonClicked) forControlEvents:UIControlEventTouchUpInside];
  // add to a view
  [self.view addSubview:myButton];
  
  }
  
  -(void)myButtonClicked{
  [myButton setTitle:@"\u2605" forState:UIControlStateNormal];
  }
  </code></pre>
  
  <p>I got this from this website and cannot find a way to remove this runtime error. Thanks</p>