terminate called after thrwing an instance of 'NSException'

plz help me to resolve this i m a learner

[Session started at 2011-01-10 14:32:07 +0530.]
2011-01-10 14:32:10.595 balls[963:207] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "ballsViewController" nib but the view outlet was not set.'
*** Call stack at first throw:
(
 0   CoreFoundation                      0x025a5b99 __exceptionPreprocess + 185
 1   libobjc.A.dylib                     0x0239a40e objc_exception_throw + 47
 2   CoreFoundation                      0x0255e238 +[NSException raise:format:arguments:] + 136
 3   CoreFoundation                      0x0255e1aa +[NSException raise:format:] + 58
 4   UIKit                               0x00363a40 -[UIVi开发者_运维百科ewController _loadViewFromNibNamed:bundle:] + 295
 5   UIKit                               0x00361675 -[UIViewController loadView] + 120
 6   UIKit                               0x0036154f -[UIViewController view] + 56
 7   balls                               0x00001fc1 -[ballsAppDelegate application:didFinishLaunchingWithOptions:] + 74
 8   UIKit                               0x002b7f27 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
 9   UIKit                               0x002ba3b0 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 346
 10  UIKit                               0x002c43ec -[UIApplication handleEvent:withNewEvent:] + 1958
 11  UIKit                               0x002bcb3c -[UIApplication sendEvent:] + 71
 12  UIKit                               0x002c19bf _UIApplicationHandleEvent + 7672
 13  GraphicsServices                    0x030f0822 PurpleEventCallback + 1550
 14  CoreFoundation                      0x02586ff4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
 15  CoreFoundation                      0x024e7807 __CFRunLoopDoSource1 + 215
 16  CoreFoundation                      0x024e4a93 __CFRunLoopRun + 979
 17  CoreFoundation                      0x024e4350 CFRunLoopRunSpecific + 208
 18  CoreFoundation                      0x024e4271 CFRunLoopRunInMode + 97
 19  UIKit                               0x002b9c6d -[UIApplication _run] + 625
 20  UIKit                               0x002c5af2 UIApplicationMain + 1160
 21  balls                               0x00001f54 main + 102
 22  balls                               0x00001ee5 start + 53
)
terminate called after throwing an instance of 'NSException'

Go to ballsViewController's xib and check whether the View is connected to Files Owner or not.

If not than control click on the View and drag the mouse to the files owner