title: Swift Error - "Unrecognized selector sent to instance"
body: <p>I am working on a Swift project in Xcode v6.1.1, and I am getting the following error that I don't understand. I believe there is a problem with a couple of the Labels in my Main.storyboard and/or the UILabel variable I have them connected to.
  I have tried everything I can find to fix it, and nothing has worked.</p>
  
  <p>Any help would be appreciated.</p>
  
  <pre><code>2015-03-02 19:43:14.854 Final Project[7380:250494] -[UILabel longValue]:  unrecognized selector sent to instance 0x7b8e1810  
  2015-03-02 19:43:14.876 Final Project[7380:250494] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UILabel longValue]: unrecognized selector sent to instance 0x7b8e1810'  
  *** First throw call stack:  
  (
      0   CoreFoundation                      0x00686946 __exceptionPreprocess + 182  
      1   libobjc.A.dylib                     0x02062a97 objc_exception_throw + 44  
      2   CoreFoundation                      0x0068e5c5 -[NSObject(NSObject)   doesNotRecognizeSelector:] + 277  
      3   CoreFoundation                      0x005d73e7 ___forwarding___ + 1047  
      4   CoreFoundation                      0x005d6fae _CF_forwarding_prep_0 + 14  
      5   Foundation                          0x00b0b6dc _NSSetLongValueForKeyWithMethod + 69  
      6   Foundation                          0x00a691c6 _NSSetUsingKeyValueSetter + 257  
      7   Foundation                          0x00a690bd -[NSObject(NSKeyValueCoding) setValue:forKey:] + 267  
      8   Foundation                          0x00a9e9a6 -[NSObject(NSKeyValueCoding) setValue:forKeyPath:] + 386  
      9   UIKit                               0x011cf649 -[UIRuntimeOutletConnection connect] + 106  
      10  libobjc.A.dylib                     0x02078724 -[NSObject performSelector:] + 62  
      11  CoreFoundation                      0x005c05dc -[NSArray makeObjectsPerformSelector:] + 316  
      12  UIKit                               0x011ce10a -[UINib instantiateWithOwner:options:] + 1775  
      13  UIKit                               0x00ff0624 -[UIViewController _loadViewFromNibNamed:bundle:] + 270  
      14  UIKit                               0x00ff0dbb -[UIViewController loadView] + 295  
      15  UIKit                               0x00ff0fef -[UIViewController loadViewIfRequired] + 78  
      16  UIKit                               0x00ff1595 -[UIViewController view] + 35  
      17  UIKit                               0x01664707 -[_UIFullscreenPresentationController _setPresentedViewController:] + 75  
      18  UIKit                               0x00fc6a81 -[UIPresentationController initWithPresentedViewController:presentingViewController:] + 113  
      19  UIKit                               0x00ffea61 -[UIViewController _presentViewController:withAnimationController:completion:] + 2102  
      20  UIKit                               0x010015d2 __62-[UIViewController presentViewController:animated:completion:]_block_invoke + 345  
      21  UIKit                               0x01001424 -[UIViewController presentViewController:animated:completion:] + 224  
      22  UIKit                               0x010060be -[UIViewController _showViewController:withAction:sender:] + 213  
      23  UIKit                               0x012423b5 -[UIStoryboardShowSegue perform] + 143  
      24  UIKit                               0x014b6b49 -[UIStoryboardSegueTemplate _perform:] + 217  
      25  UIKit                               0x014b6bc5 -[UIStoryboardSegueTemplate perform:] + 116  
      26  libobjc.A.dylib                     0x020787cd -[NSObject performSelector:withObject:withObject:] + 84  
      27  UIKit                               0x00e9b23d -[UIApplication sendAction:to:from:forEvent:] + 99  
      28  UIKit                               0x00e9b1cf -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 64  
      29  UIKit                               0x00fcee86 -[UIControl sendAction:to:forEvent:] + 69  
      30  UIKit                               0x00fcf2a3 -[UIControl _sendActionsForEvents:withEvent:] + 598  
      31  UIKit                               0x00fce50d -[UIControl touchesEnded:withEvent:] + 660  
      32  UIKit                               0x00eeb60a -[UIWindow _sendTouchesForEvent:] + 874  
      33  UIKit                               0x00eec0e5 -[UIWindow sendEvent:] + 791  
      34  UIKit                               0x00eb1549 -[UIApplication sendEvent:] + 242  
      35  UIKit                               0x00ec137e _UIApplicationHandleEventFromQueueEvent + 20690  
      36  UIKit                               0x00e95b19 _UIApplicationHandleEventQueue + 2206  
      37  CoreFoundation                      0x005aa1df __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15  
      38  CoreFoundation                      0x0059fced __CFRunLoopDoSources0 + 253  
      39  CoreFoundation                      0x0059f248 __CFRunLoopRun + 952  
      40  CoreFoundation                      0x0059ebcb CFRunLoopRunSpecific + 443  
      41  CoreFoundation                      0x0059e9fb CFRunLoopRunInMode + 123  
      42  GraphicsServices                    0x0441a24f GSEventRunModal + 192  
      43  GraphicsServices                    0x0441a08c GSEventRun + 104  
      44  UIKit                               0x00e998b6 UIApplicationMain + 1526  
      45  Final Project                       0x000e904e top_level_code + 78  
      46  Final Project                       0x000e908b main + 43  
      47  libdyld.dylib                       0x027cfac9 start + 1  
  )  
  libc++abi.dylib: terminating with uncaught exception of type NSException
  (lldb)   
  </code></pre>