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i've created an app which loads another viewcontroller from main view controller.example from viewcontroller 1 to viewcontroller2...in viewcontroller1 if button is pressed it needs to load viewcontroller2.and in viewcontroller2 i got icarousel view too..Here is my code

 -(IBAction)showcoll:(id)sender{

CollectionsViewController *sec=[[CollectionsViewController alloc]initWithNibName:Nil bundle:Nil];
sec.modalTransitionStyle=UIModalTransitionStyleCrossDissolve;

NSLog(@"hi");
[self presentModalViewController:sec animated:YES];
 }

 - (void)viewDidLoad
 {
[super viewDidLoad];
 // Do any additional setup after loading the view, typically from a nib.
 CGRect splashFrame =splash.frame;
splashFrame.origin.x = self.view.bounds.size.width;    

[UIView animateWithDuration:3
                  delay:1.0
                options: UIViewAnimationCurveEaseOut
             animations:^{
                 splash.frame = splashFrame;

             } 
             completion:^(BOOL finished){
                 NSLog(@"Done!");
             }];
 [self.view addSubview: splash];

 }

and the issue which i got is

 2012-06-30 11:16:29.301 Minora[948:12203] Done!
 2012-06-30 11:16:31.195 Minora[948:12203] hi
 2012-06-30 11:16:31.198 Minora[948:12203] *** Terminating app due to uncaught    exception      'NSUnknownKeyException', reason: '[<UIView 0x6e82b70> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key dataSource.'
  *** Call stack at first throw:
  (
  0    CoreFoundation                      0x013e45a9 __exceptionPreprocess + 185
  1   libobjc.A.dylib                     0x02b97313 objc_exception_throw + 44
  2   CoreFoundation                      0x013e44e1 -[NSException raise] + 17
   3   Foundation                          0x00b3b677 _NSSetUsingKeyValueSetter + 135
    4   Foundation                          0x00b3b5e5 -[NSObject(NSKeyValueCoding)     setValue:forKey:] + 285
    5   UIKit                               0x003eeff6 -[UIView(CALayerDelegate) setValue:forKey:] + 173
   6   UIKit                               0x005b730c -[UIRuntimeOutletConnection connect] + 112
  7   CoreFoundation                      0x0135a8cf -[NSArray makeObjectsPerformSelector:] + 239
   8   UIKit                               0x005b5d23 -[UINib instantiateWithOwner:options:] + 1041
    9   UIKit                               0x005b7ab7 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168
     10  UIKit                               0x0046d628 -[UIViewController _loadViewFromNibNamed:bundle:] + 70
   11  UIKit                               0x0046b134 -[UIViewController loadView] + 120
  12  UIKit                               0x0046b00e -[UIViewController view] + 56
   13  UIKit                               0x0046ca3d -[UIViewController viewControllerForRotation] + 63
   14  UIKit                               0x00468988 -[UIViewController _visibleView] + 90
   15  UIKit                               0x0070a93c -[UIClientRotationContext initWithClient:toOrientation:duration:andWindow:] + 354

16 UIKit 0x003e281e -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 954 17 UIKit 0x0066a619 -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:] + 1381 18 UIKit 0x0046f65d -[UIViewController presentModalViewController:withTransition:] + 3478 19 Minora 0x0000317a -[ViewController showcoll:] + 218 20 UIKit 0x003bb4fd -[UIApplication sendAction:to:from:forEvent:] + 119 21 UIKit 0x0044b799 -[UIControl sendAction:to:forEvent:] + 67 22 UIKit 0x0044dc2b -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527 23 UIKit 0x0044c7d8 -[UIControl touchesEnded:withEvent:] + 458 24 UIKit 0x003dfded -[UIWindow _sendTouchesForEvent:] + 567 25 UIKit 0x003c0c37 -[UIApplication sendEvent:] + 447 26 UIKit 0x003c5f2e _UIApplicationHandleEvent + 7576 27 GraphicsServices 0x01539992 PurpleEventCallback + 1550 28 CoreFoundation 0x013c5944 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 52 29 CoreFoundation 0x01325cf7 __CFRunLoopDoSource1 + 215 30 CoreFoundation 0x01322f83 __CFRunLoopRun + 979 31 CoreFoundation 0x01322840 CFRunLoopRunSpecific + 208 32 CoreFoundation 0x01322761 CFRunLoopRunInMode + 97 33 GraphicsServices 0x015381c4 GSEventRunModal + 217 34 GraphicsServices 0x01538289 GSEventRun + 115 35 UIKit 0x003c9c93 UIApplicationMain + 1160 36 Minora 0x00002ada main + 170 37 Minora 0x00002a25 start + 53 ) terminate called throwing an exception(lldb)

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i solved it on my own...I found out the problem because of icarousel view i used...i assigned same icarousel to 2 UIView..That makes issue... – Vishnu Prasath Jun 30 '12 at 7:18
In general, if you solve a problem on your own, you can post an answer and accept your own answer. In this case, however, the question is off-topic for this site. Questions about programming, development, and listing your apps on the App Store are off topic for Ask Different. – Daniel Lawson Jun 30 '12 at 12:54

closed as off topic by Daniel Lawson Jun 30 '12 at 12:54

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