iPhone app crashes on startup

Question

I had two apps in xcode, which i wanted to combine, so i started a new project and attempted to put the two apps together in this new one. Was this a really stupid thing to do?

The app now crashes on start up and i have no idea why, i'm 99% the outlets are all connected. It uses xcdatamodel for storage and i've imported the right framework.

Can anyone think of any other things that could be going wrong?

I can attach a zip file with the project in if someone wouldn't mind having a look

Any help is massively appreciated!

Thanks

This is the stack trace:

    2010-11-02 08:18:59.903 iStalker[34745:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIApplication 0x5b10e20> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key textField.'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x0256f919 __exceptionPreprocess + 185
    1   libobjc.A.dylib                     0x026bd5de objc_exception_throw + 47
    2   CoreFoundation                      0x0256f851 -[NSException raise] + 17
    3   Foundation                          0x0003bc2b _NSSetUsingKeyValueSetter + 135
    4   Foundation                          0x0003bb99 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 285
    5   UIKit                               0x004b5d0a -[UIRuntimeOutletConnection connect] + 112
    6   CoreFoundation                      0x024e5b6f -[NSArray makeObjectsPerformSelector:] + 239
    7   UIKit                               0x004b4721 -[UINib instantiateWithOwner:options:] + 1041
    8   UIKit                               0x004b64b5 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168
    9   UIKit                               0x002c59bb -[UIApplication _loadMainNibFile] + 172
    10  UIKit                               0x002c690d -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 198
    11  UIKit                               0x002d0452 -[UIApplication handleEvent:withNewEvent:] + 1958
    12  UIKit                               0x002c9074 -[UIApplication sendEvent:] + 71
    13  UIKit                               0x002cdac4 _UIApplicationHandleEvent + 7495
    14  GraphicsServices                    0x02dd5afa PurpleEventCallback + 1578
    15  CoreFoundation                      0x02550dc4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
    16  CoreFoundation                      0x024b1737 __CFRunLoopDoSource1 + 215
    17  CoreFoundation                      0x024ae9c3 __CFRunLoopRun + 979
    18  CoreFoundation                      0x024ae280 CFRunLoopRunSpecific + 208
    19  CoreFoundation                      0x024ae1a1 CFRunLoopRunInMode + 97
    20  UIKit                               0x002c6226 -[UIApplication _run] + 625
    21  UIKit                               0x002d1b58 UIApplicationMain + 1160
    22  iStalker                            0x00001b50 main + 102
    23  iStalker                            0x00001ae1 start + 53
)
terminate called after throwing an instance of 'NSException'

Answer 1

Looks like you have a text field connected to the application delegate in your main XIB. There is no such field defined on the real application delegate, which is why you're getting the error.

Answer 2

Thats because you set main xib for app in info plist and set File Owner to appDelegate , while main xib file's owner is always UIApplication . Possible solution - add Object to .xib , set its class for a ppDelegate class and connect all unnecessary outlets. This worked for me.