2014-01-17 13:07:51.076 FiT[1681:70b] -[LoginViewController setMessage:]: unrecognized selector sent to instance 0xaa88df0 2014-01-17 13:07:51.080 FiT[1681:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[LoginViewController setMessage:]: unrecognized selector sent to instance 0xaa88df0' *** First throw call stack: ( 0 CoreFoundation 0x02c3a5e4 exceptionPreprocess + 180 1 libobjc.A.dylib 0x029bd8b6 objc_exception_throw + 44 2 CoreFoundation 0x02cd7903 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275 3 CoreFoundation 0x02c2a90b ___forwarding_ + 1019 4 CoreFoundation 0x02c2a4ee CF_forwarding_prep_0 + 14 5 FiT 0x00009db8 -[InboxViewController prepareForSegue:sender:] + 536 6 UIKit 0x01c6006c -[UIStoryboardSegueTemplate _perform:] + 156 7 UIKit 0x01841280 -[UIViewController performSegueWithIdentifier:sender:] + 72 8 FiT 0x000089ca -[InboxViewController viewDidLoad] + 410 9 UIKit 0x0183f318 -[UIViewController loadViewIfRequired] + 696 10 UIKit 0x01864b15 -[UINavigationController _layoutViewController:] + 39 11 UIKit 0x0186502b -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 235 12 UIKit 0x01865123 -[UINavigationController _startTransition:fromViewController:toViewController:] + 78 13 UIKit 0x0186609c -[UINavigationController _startDeferredTransitionIfNeeded:] + 645 14 UIKit 0x01866cb9 -[UINavigationController __viewWillLayoutSubviews] + 57 15 UIKit 0x019a0181 -[UILayoutContainerView layoutSubviews] + 213 16 UIKit 0x01796267 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 355 17 libobjc.A.dylib 0x029cf81f -[NSObject performSelector:withObject:] + 70 18 QuartzCore 0x00f502ea -[CALayer layoutSublayers] + 148 19 QuartzCore 0x00f440d4 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380 20 QuartzCore 0x00f50235 -[CALayer layoutIfNeeded] + 160 21 UIKit 0x01851613 -[UIViewController window:setupWithInterfaceOrientation:] + 304 22 UIKit 0x01770177 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 5212 23 UIKit 0x0176ed16 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 82 24 UIKit 0x0176ebe8 -[UIWindow _setRotatableViewOrientation:updateStatusBar:duration:force:] + 117 25 UIKit 0x0176ec70 -[UIWindow _setRotatableViewOrientation:duration:force:] + 67 26 UIKit 0x0176dd0a __57-[UIWindow _updateToInterfaceOrientation:duration:force:]_block_invoke + 120 27 UIKit 0x0176dc6c -[UIWindow _updateToInterfaceOrientation:duration:force:] + 400 28 UIKit 0x0176e9c3 -[UIWindow setAutorotates:forceUpdateInterfaceOrientation:] + 870 29 UIKit 0x01771fb6 -[UIWindow setDelegate:] + 449 30 UIKit 0x01843737 -[UIViewController _tryBecomeRootViewControllerInWindow:] + 180 31 UIKit 0x01767c1c -[UIWindow addRootViewControllerViewIfPossible] + 609 32 UIKit 0x01767d97 -[UIWindow _setHidden:forced:] + 312 33 UIKit 0x0176802d -[UIWindow _orderFrontWithoutMakingKey] + 49 34 UIKit 0x0177289a -[UIWindow makeKeyAndVisible] + 65 35 UIKit 0x01725cd0 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1851 36 UIKit 0x0172a3a8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 824 37 UIKit 0x0173e87c -[UIApplication handleEvent:withNewEvent:] + 3447 38 UIKit 0x0173ede9 -[UIApplication sendEvent:] + 85 39 UIKit 0x0172c025 _UIApplicationHandleEvent + 736 40 GraphicsServices 0x0360a2f6 _PurpleEventCallback + 776 41 GraphicsServices 0x03609e01 PurpleEventCallback + 46 42 CoreFoundation 0x02bb5d65 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION_ + 53 43 CoreFoundation 0x02bb5a9b __CFRunLoopDoSource1 + 523 44 CoreFoundation 0x02be077c __CFRunLoopRun + 2156 45 CoreFoundation 0x02bdfac3 CFRunLoopRunSpecific + 467 46 CoreFoundation 0x02bdf8db CFRunLoopRunInMode + 123 47 UIKit 0x01729add -[UIApplication _run] + 840 48 UIKit 0x0172bd3b UIApplicationMain + 1225 49 FiT 0x0000221d main + 141 50 libdyld.dylib 0x04b8070d start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException (lldb)

What does this mean and how can i fix it? I finished a lll tutorials in this chapter. Every time i run it on simulator, all i get is black screen. and xCode screen goes straight to this and shows warning error on Thread 1: signal SIGABRT // // main.m // iFiT // // Created by Erdi Meco on 1/10/14. // Copyright (c) 2014 Erdi Meco. All rights reserved. //

import <UIKit/UIKit.h>

import "AppDelegate.h"

int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); } }

Please help me????