I'm out of my depth with a zombie. findMatchForRequest: is inadequate for consistent matchmaking, hence the use of [addPlayersToMatch:matchRequest:completionHandler:] where it presumably crashes:
-[__NSMallocBlock__ intValue]: unrecognized selector sent to instance
-[CFString retain]: message sent to deallocated instance // NSZombieEnabled
Below is the whole 'minimum working example' project (on Dropbox) that sooner than later crashes.
#implementation GameCenterHelper { GKMatch* _currentMatch; }
+ (GameCenterHelper *)sharedInstance {
static GameCenterHelper* sharedHelper;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^ {
sharedHelper = [GameCenterHelper new];
});
return sharedHelper;
}
- (void)authenticateLocalPlayer {
[GKLocalPlayer localPlayer].authenticateHandler = ^(UIViewController *loginViewController, NSError *error) {
[self findMatch];
};
}
- (void)findMatch {
GKMatchRequest *request = [GKMatchRequest new];
request.minPlayers = 2;
request.maxPlayers = 4;
[[GKMatchmaker sharedMatchmaker] findMatchForRequest:request withCompletionHandler:^(GKMatch *match, NSError *error) {
_currentMatch = match;
_currentMatch.delegate = self;
}];
}
- (void)addPlayersToMatch {
GKMatchRequest *request = [GKMatchRequest new];
request.minPlayers = 2;
request.maxPlayers = 4;
[[GKMatchmaker sharedMatchmaker] addPlayersToMatch:_currentMatch matchRequest:request completionHandler:nil];
}
- (void)match:(GKMatch *)match player:(NSString *)playerID didChangeState:(GKPlayerConnectionState)state {
[self addPlayersToMatch];
}
#end
Am I missing something fundamental in memory management of blocks? The above gets called in:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[[GameCenterHelper sharedInstance] authenticateLocalPlayer];
return YES;
}
There's no error handling here, and one has to create a mockup app on iTunesConnect to experience the crash, otherwise there's no GKMatch being returned. I also made sure that bundle versions between Xcode and iTunesConnect agree, i.e. 1.0 vs 1.0.0.
Traces
Zombie caught in Instruments:
Stack traces from Instruments for each Event Type seen above (Malloc, Release, Zombie):
Malloc at RefCt 1:
0 libsystem_malloc.dylib malloc_zone_malloc
1 CoreFoundation _CFRuntimeCreateInstance
2 CoreFoundation __CFStringCreateImmutableFunnel3
3 CoreFoundation CFStringCreateCopy
4 CoreFoundation _CFStringCreateWithFormatAndArgumentsAux
5 Foundation -[NSPlaceholderString initWithFormat:locale:arguments:]
6 Foundation -[NSString initWithFormat:]
7 GameKitServices -[GKConnectionInternal connectParticipantsWithConnectionData:withSessionInfo:]
8 GameCenterFoundation -[GKMatch connectToPeersWithDictionaries:version:sessionToken:cdxTicket:]
9 GameCenterFoundation __104-[GKMatchmaker matchWithRequest:currentMatch:currentPlayerIDs:serverHosted:rematchID:completionHandler:]_block_invoke_2
10 CoreFoundation __invoking___
11 CoreFoundation -[NSInvocation invoke]
12 GameCenterFoundation -[NSInvocation(GKProxyHelpers) _gkInvokeOnce]
13 GameCenterFoundation __53-[GKDaemonProxy connection:handleInvocation:isReply:]_block_invoke
14 libdispatch.dylib _dispatch_call_block_and_release
15 libdispatch.dylib _dispatch_client_callout
16 libdispatch.dylib _dispatch_main_queue_callback_4CF
17 CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
18 CoreFoundation __CFRunLoopRun
19 CoreFoundation CFRunLoopRunSpecific
20 CoreFoundation CFRunLoopRunInMode
21 GraphicsServices GSEventRunModal
22 UIKit UIApplicationMain
23 GameCenterBug main /Volumes/Lion2/Developer/Objective-C/GameCenterBug/GameCenterBug/main.m:7
24 libdyld.dylib start
Release at RefCt 0:
0 CoreFoundation -[__NSCFString release]
1 GameKitServices -[GKConnectionInternal connectParticipantsWithConnectionData:withSessionInfo:]
2 GameCenterFoundation -[GKMatch connectToPeersWithDictionaries:version:sessionToken:cdxTicket:]
3 GameCenterFoundation __104-[GKMatchmaker matchWithRequest:currentMatch:currentPlayerIDs:serverHosted:rematchID:completionHandler:]_block_invoke_2
4 CoreFoundation __invoking___
5 CoreFoundation -[NSInvocation invoke]
6 GameCenterFoundation -[NSInvocation(GKProxyHelpers) _gkInvokeOnce]
7 GameCenterFoundation __53-[GKDaemonProxy connection:handleInvocation:isReply:]_block_invoke
8 libdispatch.dylib _dispatch_call_block_and_release
9 libdispatch.dylib _dispatch_client_callout
10 libdispatch.dylib _dispatch_main_queue_callback_4CF
11 CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
12 CoreFoundation __CFRunLoopRun
13 CoreFoundation CFRunLoopRunSpecific
14 CoreFoundation CFRunLoopRunInMode
15 GraphicsServices GSEventRunModal
16 UIKit UIApplicationMain
17 GameCenterBug main /Volumes/Lion2/Developer/Objective-C/GameCenterBug/GameCenterBug/main.m:7
18 libdyld.dylib start
Zombie at RefCt -1:
0 CoreFoundation ___forwarding___
1 CoreFoundation _CF_forwarding_prep_0
2 libsystem_blocks.dylib _Block_object_assign
3 GameKitServices __copy_helper_block_355
4 libsystem_blocks.dylib _Block_copy_internal
5 libdispatch.dylib _dispatch_Block_copy
6 libdispatch.dylib dispatch_group_async
7 GameKitServices -[GKConnectionInternal connectParticipantsWithConnectionData:withSessionInfo:]
8 GameCenterFoundation -[GKMatch connectToPeersWithDictionaries:version:sessionToken:cdxTicket:]
9 GameCenterFoundation __104-[GKMatchmaker matchWithRequest:currentMatch:currentPlayerIDs:serverHosted:rematchID:completionHandler:]_block_invoke_2
10 CoreFoundation __invoking___
11 CoreFoundation -[NSInvocation invoke]
12 GameCenterFoundation -[NSInvocation(GKProxyHelpers) _gkInvokeOnce]
13 GameCenterFoundation __53-[GKDaemonProxy connection:handleInvocation:isReply:]_block_invoke
14 libdispatch.dylib _dispatch_call_block_and_release
15 libdispatch.dylib _dispatch_client_callout
16 libdispatch.dylib _dispatch_main_queue_callback_4CF
17 CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
18 CoreFoundation __CFRunLoopRun
19 CoreFoundation CFRunLoopRunSpecific
20 CoreFoundation CFRunLoopRunInMode
21 GraphicsServices GSEventRunModal
22 UIKit UIApplicationMain
23 GameCenterBug main /Volumes/Lion2/Developer/Objective-C/GameCenterBug/GameCenterBug/main.m:7
24 libdyld.dylib start
Identical, pre-ARC question (with a dubious answer): -[CFString retain]: message sent to deallocated instance 0x215076c0
Related:
Game Center Finding a Match Programmatically
Can't add additional players with [GKMatchmaker addPlayersToMatch] on iPhone/IOS 5
Matt Gallagher's and ThirdCog's blog posts on blocks.
Just a few hours ago Apple said that the bug got fixed and that the fix will be in one of the next iOS versions.
Related
While adding child viewcontroller, I am getting following crash,
Here NavigationViewController is extended from UIViewController.
This error is coming when I upgraded to Xcode 9, working successfully on earlier versions of Xcode.
I referred the Link but not getting any satisfied answer, please help me out this,
Thanx in advance. :)
The block of code is:
_mainSectionsController = [[[MainSectionsController alloc] initWithNibName:nil bundle:nil] autorelease];
[self addChildViewController:_mainSectionsController];
**Init method of _mainSectionsController** .
-(id)initWithNibName:(NSString*)nibNameOrNil bundle:(NSBundle*)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (!self) return nil;
self.edgesForExtendedLayout = UIRectEdgeAll;
self.viewControllers = #
[
[[[NavigationViewController alloc] initWithNibName:nil bundle:nil]
autorelease]
];
return self;
}
**init method of NavigationViewController**
-(id)initWithNibName:(NSString*)nibNameOrNil bundle: (NSBundle*)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (!self) return nil;
self.edgesForExtendedLayout = UIRectEdgeAll;
_navController = [[[UINavigationController alloc] initWithNibName:nil bundle:nil] autorelease];
_navController.get().delegate = self;
_navController.get().navigationBarHidden = YES;
_navController.get().view.clipsToBounds = YES;
_navController.get().view.backgroundColor = [UIColor clearColor];
return self;
}
2018-05-22 10:46:23.112290+0530 [912:19925] -[NavigationViewController _viewControllerSubtreeDidGainViewController:]: unrecognized selector sent to instance 0x7f91ba83c000
2018-05-22 10:46:24.939903+0530 [912:19925] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NavigationViewController _viewControllerSubtreeDidGainViewController:]: unrecognized selector sent to instance 0x7f91ba83c000'
* First throw call stack:
(
0 CoreFoundation 0x000000010f03f12b exceptionPreprocess + 171 .
1 libobjc.A.dylib 0x000000010e640f41 objc_exception_throw + 48
2 CoreFoundation 0x000000010f0c0024 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 UIKit 0x000000010b2cdf51 -[UIResponder doesNotRecognizeSelector:] + 295
4 CoreFoundation 0x000000010efc1f78 ___forwarding_ + 1432
5 CoreFoundation 0x000000010efc1958 _CF_forwarding_prep_0 + 120
6 UIKit 0x000000010b246c1d -[UIViewController _addChildViewController:performHierarchyCheck:notifyWillMove:] + 696
7 UIKit 0x000000010b26930e -[UIViewController(UIContainerViewControllerProtectedMethods) addChildViewController:] + 83
8 0x00000001058eeac3 -[MainViewController initWithNibName:bundle:] + 5235
9 0x00000001059876ca -[AppDelegate loadMainViewController] + 122
10 0x0000000105984561 -[AppDelegate application:didFinishLaunchingWithOptions:] + 1137
11 UIKit 0x000000010b091bca -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 299
12 UIKit 0x000000010b093648 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4113
13 UIKit 0x000000010b098aeb -[UIApplication _runWithMainScene:transitionContext:completion:] + 1720
14 UIKit 0x000000010b4626f8 111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 924
15 UIKit 0x000000010b8384c8 +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153
16 UIKit 0x000000010b4622f1 -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 249
17 UIKit 0x000000010b462b6b -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 696
18 UIKit 0x000000010bde0a69 __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 262
19 UIKit 0x000000010bde0922 -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 444
20 UIKit 0x000000010babd9c8 __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 221
21 UIKit 0x000000010bcbcb06 _performActionsWithDelayForTransitionContext + 100
22 UIKit 0x000000010babd88b -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 231
23 UIKit 0x000000010b837b25 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392
24 UIKit 0x000000010b09736a -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 523
25 UIKit 0x000000010b672605 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 369
26 FrontBoardServices 0x0000000116cb8cc0 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 338
27 FrontBoardServices 0x0000000116cc17b5 __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 235
28 libdispatch.dylib 0x000000010f87b33d _dispatch_client_callout + 8
29 libdispatch.dylib 0x000000010f8809f3 _dispatch_block_invoke_direct + 592
30 FrontBoardServices 0x0000000116ced498 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 24
31 FrontBoardServices 0x0000000116ced14e -[FBSSerialQueue _performNext] + 464
32 FrontBoardServices 0x0000000116ced6bd -[FBSSerialQueue _performNextFromRunLoopSource] + 45
33 CoreFoundation 0x000000010efe2101 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
34 CoreFoundation 0x000000010f081f71 __CFRunLoopDoSource0 + 81
35 CoreFoundation 0x000000010efc6a19 __CFRunLoopDoSources0 + 185
36 CoreFoundation 0x000000010efc5fff __CFRunLoopRun + 1279
37 CoreFoundation 0x000000010efc5889 CFRunLoopRunSpecific + 409
38 GraphicsServices 0x000000010fed99c6 GSEventRunModal + 62
39 UIKit 0x000000010b09a5d6 UIApplicationMain + 159
40 0x000000010590c331 main + 65
41 libdyld.dylib 0x000000010f8f7d81 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Since you have autorelease in your MainSectionsController code I assume that you don't use ARC there. I highly recommend upgrading the code of MainSectionsController and NavigationViewController to ARC. This prevents accidental overreleases that might cause issues like this one.
In addition I'd recommend to move self.viewControllers assignment from the constructor to viewDidLoad if possible.
I'm seeing this crash happen very randomly:
Fatal Exception: NSInvalidArgumentException
*** setObjectForKey: object cannot be nil (key: NSViewController-Qmf-WE-Bmb)
0 CoreFoundation 0x7fff95e504da __exceptionPreprocess
1 libobjc.A.dylib 0x7fff923eef7e objc_exception_throw
2 CoreFoundation 0x7fff95d4a414 -[__NSDictionaryM setObject:forKey:]
3 AppKit 0x7fff9857f917 -[NSStoryboard nibForControllerWithIdentifier:]
4 AppKit 0x7fff9857fc11 -[NSStoryboard instantiateControllerWithIdentifier:]
5 AppKit 0x7fff982e733b -[NSStoryboardSegueTemplate _perform:]
6 AppKit 0x7fff983345d7 -[NSViewController performSegueWithIdentifier:sender:]
7 libdispatch.dylib 0x7fff8e5cc93d _dispatch_call_block_and_release
8 libdispatch.dylib 0x7fff8e5c140b _dispatch_client_callout
9 libdispatch.dylib 0x7fff8e5d4c1c _dispatch_main_queue_callback_4CF
10 CoreFoundation 0x7fff95e059e9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
11 CoreFoundation 0x7fff95dc48dd __CFRunLoopRun
12 CoreFoundation 0x7fff95dc3ed8 CFRunLoopRunSpecific
13 HIToolbox 0x7fff99b4b935 RunCurrentEventLoopInMode
14 HIToolbox 0x7fff99b4b76f ReceiveNextEventCommon
15 HIToolbox 0x7fff99b4b5af _BlockUntilNextEventMatchingListInModeWithFilter
16 AppKit 0x7fff97e3bdf6 _DPSNextEvent
17 AppKit 0x7fff97e3b226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
18 AppKit 0x7fff97e2fd80 -[NSApplication run]
19 AppKit 0x7fff97df9368 NSApplicationMain
20 libdyld.dylib 0x7fff8c6875ad start
I've verified that the segue identifier is correct and that the storyboard exists and contains the segue. I've also verified that there is a view controller with ID: Qmf-WE-Bmb.
Any clues why this would happen? Does this mean the source VC is deallocated or that its failing to load the destination VC?
In case anyone hits the same issue, I circumvented the crash by replacing performSegueWithIdentifier: with a custom function on my base controller:
- (void)performManualSegueWithControllerID:(NSString *)identifier {
if ([NSThread isMainThread]) {
NSViewController *controller = [self.storyboard instantiateControllerWithIdentifier:identifier];
if (controller) {
MyCustomAnimator *animator = [[MyCustomAnimator alloc] init];
[animator setAnimateVertically:NO];
[self prepareForManualSegueToController:controller];
[self presentViewController:controller animator:animator];
} else {
// Some Error
}
} else {
[self performSelectorOnMainThread:#selector(performManualSegueWithControllerID:)
withObject:identifier
waitUntilDone:NO];
}
}
- (void)prepareForManualSegueToController:(NSViewController *)controller {
}
I ran into an issue when testing my application in iOS7. The application currently runs just fine in iOS5 and iOS6. Based on the stack trace, it would appear that a private method is causing the issue.
2013-11-21 17:00:56.565 MyApp[706:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'An override of -[UINavigationController navigationBar] is returning an object that is not a kind of UINavigationBar'
*** First throw call stack:
(
0 CoreFoundation 0x0244d5e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x01eee8b6 objc_exception_throw + 44
2 CoreFoundation 0x0244d3bb +[NSException raise:format:] + 139
3 UIKit 0x00af796c -[UINavigationController _confirmBarAccessMethods] + 277
4 UIKit 0x00af7b19 -[UINavigationController initWithNibName:bundle:] + 271
5 MyApp 0x000b8bd8 -[CustomUINavigationController initWithNibName:bundle:] + 152
6 UIKit 0x00af77b3 -[UINavigationController initWithRootViewController:] + 86
7 MyApp 0x000b8ea1 -[CustomUINavigationController initWithRootViewController:] + 113
8 MyApp 0x0000260a -[AppDelegate application:didFinishLaunchingWithOptions:] + 666
9 UIKit 0x009c7355 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 309
10 UIKit 0x009c7b95 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1536
11 UIKit 0x009cc3a8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 824
12 UIKit 0x009e087c -[UIApplication handleEvent:withNewEvent:] + 3447
13 UIKit 0x009e0de9 -[UIApplication sendEvent:] + 85
14 UIKit 0x009ce025 _UIApplicationHandleEvent + 736
15 GraphicsServices 0x0478b2f6 _PurpleEventCallback + 776
16 GraphicsServices 0x0478ae01 PurpleEventCallback + 46
17 CoreFoundation 0x023c8d65 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
18 CoreFoundation 0x023c8a9b __CFRunLoopDoSource1 + 523
19 CoreFoundation 0x023f377c __CFRunLoopRun + 2156
20 CoreFoundation 0x023f2ac3 CFRunLoopRunSpecific + 467
21 CoreFoundation 0x023f28db CFRunLoopRunInMode + 123
22 UIKit 0x009cbadd -[UIApplication _run] + 840
23 UIKit 0x009cdd3b UIApplicationMain + 1225
24 MyApp 0x00002337 main + 295
25 MyApp 0x00002205 start + 53
)
libc++abi.dylib: terminating with uncaught exception of type NSException
This crash happens only when testing in iOS7. It happens as soon as [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil] is called. I cannot find any information about _confirmBarAccessMethods. I assume it is a private UINavigationController method.
Here is the header file for the CustomUINavigationController class:
#import <UIKit/UIKit.h>
#import "CustomUINavigationBar.h"
#interface CustomUINavigationController : UINavigationController
{
CustomUINavigationBar *customNavigationBar;
}
#property (nonatomic, retain) UIColor *titleColor;
#end
This is the init method in which the application crashes:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; // This line causes the application to crash
if (self) {
customNavigationBar = [[CustomUINavigationBar alloc] init];
[customNavigationBar setTintColor:[UIColor colorWithWhite:0.0 alpha:1.0]];
[customNavigationBar setItems:[NSArray array] animated:NO];
[customNavigationBar setDelegate:self];
self.titleColor = [UIColor colorWithWhite:1.0 alpha:1.0];
}
return self;
}
Here is the header file for CustomNavigationBar:
#import <UIKit/UIKit.h>
#interface CustomUINavigationBar : UINavigationBar
{
UIImage *background;
}
#end
Any help would be greatly appreciated. I can provide more information if necessary.
EDIT: Added trace from suggested solution of using custom navigation bar initializer
2013-11-22 13:04:49.756 MyApp[390:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'An override of -[UINavigationController navigationBar] is returning an object that is not a kind of UINavigationBar'
*** First throw call stack:
(
0 CoreFoundation 0x0244d5e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x01eee8b6 objc_exception_throw + 44
2 CoreFoundation 0x0244d3bb +[NSException raise:format:] + 139
3 UIKit 0x00af796c -[UINavigationController _confirmBarAccessMethods] + 277
4 UIKit 0x00af7b19 -[UINavigationController initWithNibName:bundle:] + 271
5 MyApp 0x000b8e38 -[CustomUINavigationController initWithNibName:bundle:] + 152
6 UIKit 0x00af7815 -[UINavigationController initWithNavigationBarClass:toolbarClass:] + 52
7 MyApp 0x00002868 -[AppDelegate application:didFinishLaunchingWithOptions:] + 712
8 UIKit 0x009c7355 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 309
9 UIKit 0x009c7b95 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1536
10 UIKit 0x009cc3a8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 824
11 UIKit 0x009e087c -[UIApplication handleEvent:withNewEvent:] + 3447
12 UIKit 0x009e0de9 -[UIApplication sendEvent:] + 85
13 UIKit 0x009ce025 _UIApplicationHandleEvent + 736
14 GraphicsServices 0x0478b2f6 _PurpleEventCallback + 776
15 GraphicsServices 0x0478ae01 PurpleEventCallback + 46
16 CoreFoundation 0x023c8d65 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
17 CoreFoundation 0x023c8a9b __CFRunLoopDoSource1 + 523
18 CoreFoundation 0x023f377c __CFRunLoopRun + 2156
19 CoreFoundation 0x023f2ac3 CFRunLoopRunSpecific + 467
20 CoreFoundation 0x023f28db CFRunLoopRunInMode + 123
21 UIKit 0x009cbadd -[UIApplication _run] + 840
22 UIKit 0x009cdd3b UIApplicationMain + 1225
23 MyApp 0x00002567 main + 295
24 MyApp 0x00002435 start + 53
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
Create the navigation controller with initWithNavigationBarClass:toolbarClass: and supply your custom navigation bar class. Then perform any configuration you require on the instance created for you by the nav controller superclass.
I finally resolved the issue. CustomerUINavigationController had an override method for the navigationBar accessor. It was attempting to return a nil value. I removed this and the application compiled and ran with no issues.
i am getting error when i try to run an app on my simulator.
I have copied the JSON(JSON Framework) project in my app but my simulator crashes when it compiles the below lines,(I am using iOS 4.2)
- (void)viewDidLoad {
[super viewDidLoad];
NSString *jsonString = [NSString stringWithString:#"{\"foo\": \"bar\"}"];
NSDictionary *dictionary = [jsonString JSONValue];
NSLog(#"Dictionary value for \"foo\" is \"%#\"", [dictionary objectForKey:#"foo"]);
}
ERROR:
2011-03-02 13:33:37.304 test[10918:207] -[NSCFString JSONValue]: unrecognized selector sent to instance 0x3034
2011-03-02 13:33:37.308 test[10918:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFString JSONValue]: unrecognized selector sent to instance 0x3034'
*** Call stack at first throw:
(
0 CoreFoundation 0x00da7be9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00efc5c2 objc_exception_throw + 47
2 CoreFoundation 0x00da96fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x00d19366 ___forwarding___ + 966
4 CoreFoundation 0x00d18f22 _CF_forwarding_prep_0 + 50
5 test 0x000025d7 -[testViewController viewDidLoad] + 119
6 UIKit 0x0035e65e -[UIViewController view] + 179
7 test 0x0000237e -[testAppDelegate application:didFinishLaunchingWithOptions:] + 79
8 UIKit 0x002b11fa -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
9 UIKit 0x002b355e -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
10 UIKit 0x002bddb2 -[UIApplication handleEvent:withNewEvent:] + 1533
11 UIKit 0x002b6202 -[UIApplication sendEvent:] + 71
12 UIKit 0x002bb732 _UIApplicationHandleEvent + 7576
13 GraphicsServices 0x016dda36 PurpleEventCallback + 1550
14 CoreFoundation 0x00d89064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
15 CoreFoundation 0x00ce96f7 __CFRunLoopDoSource1 + 215
16 CoreFoundation 0x00ce6983 __CFRunLoopRun + 979
17 CoreFoundation 0x00ce6240 CFRunLoopRunSpecific + 208
18 CoreFoundation 0x00ce6161 CFRunLoopRunInMode + 97
19 UIKit 0x002b2fa8 -[UIApplication _run] + 636
20 UIKit 0x002bf42e UIApplicationMain + 1160
21 test 0x0000230c main + 102
22 test 0x0000229d start + 53
)
terminate called after throwing an instance of 'NSException'
Program received signal: “SIGABRT”.
(gdb)
Try adding -ObjC -all_load to the OTHER_LINKER_FLAGS setting. If that is not an option, you could try to use the SBJsonParser or SBJsonWriter objects directly rather than the category methods.
Make sure that SBJSON files are being compiled!
Target->Build phases->Compile files <- check if the *.m files of SBJSON are there!
Adding -ObjC -all_load to app target->build settings ->Linking ->Other Linker Flags -> Debug worked in XCode 4.
Earlier it was crashing
The code worked in iOS 3.2 and in 4.2 it keeps crashing.
Here's the line that it crashes on.
NSArray* address = [NSArray arrayWithArray:[[[access.filteredResults objectAtIndex:[indexPath row]] addressArray] objectAtIndex:0]];
2010-11-04 12:20:03.060 ContactMapper[2211:207] -[__NSCFDictionary getObjects:range:]: unrecognized selector sent to instance 0x5648e30
2010-11-04 12:20:03.062 ContactMapper[2211:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary getObjects:range:]: unrecognized selector sent to instance 0x5648e30'
*** Call stack at first throw:
(
0 CoreFoundation 0x0117abe9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x012cf5c2 objc_exception_throw + 47
2 CoreFoundation 0x0117c6fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x010ec366 ___forwarding___ + 966
4 CoreFoundation 0x010ebf22 _CF_forwarding_prep_0 + 50
5 CoreFoundation 0x01176605 -[NSArray initWithArray:range:copyItems:] + 245
6 CoreFoundation 0x010e1367 +[NSArray arrayWithArray:] + 119
7 ContactMapper 0x00003a8d -[RootViewController tableView:cellForRowAtIndexPath:] + 1333
8 UIKit 0x0033a7fa -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] + 634
9 UIKit 0x0033077f -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:] + 75
10 UIKit 0x00345450 -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow:] + 1561
11 UIKit 0x0033d538 -[UITableView layoutSubviews] + 242
12 QuartzCore 0x01fc2451 -[CALayer layoutSublayers] + 181
13 QuartzCore 0x01fc217c CALayerLayoutIfNeeded + 220
14 UIKit 0x005c7702 -[UISplitViewController willRotateToInterfaceOrientation:duration:] + 1134
15 UIKit 0x00373df2 -[UIViewController window:willRotateToInterfaceOrientation:duration:] + 962
16 UIKit 0x002edee5 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 1783
17 UIKit 0x002e8538 -[UIWindow _setRotatableViewOrientation:duration:force:] + 89
18 UIKit 0x002eb643 -[UIWindow _updateInterfaceOrientationFromDeviceOrientation:] + 164
19 Foundation 0x000306c1 _nsnote_callback + 145
20 CoreFoundation 0x01152f99 __CFXNotificationPost_old + 745
21 CoreFoundation 0x010d233a _CFXNotificationPostNotification + 186
22 Foundation 0x00026266 -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
23 UIKit 0x00477d0a -[UIDevice setOrientation:animated:] + 228
24 UIKit 0x002c9637 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 656
25 UIKit 0x002d3db2 -[UIApplication handleEvent:withNewEvent:] + 1533
26 UIKit 0x002cc202 -[UIApplication sendEvent:] + 71
27 UIKit 0x002d1732 _UIApplicationHandleEvent + 7576
28 GraphicsServices 0x01ab0a36 PurpleEventCallback + 1550
29 CoreFoundation 0x0115c064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
30 CoreFoundation 0x010bc6f7 __CFRunLoopDoSource1 + 215
31 CoreFoundation 0x010b9983 __CFRunLoopRun + 979
32 CoreFoundation 0x010b9240 CFRunLoopRunSpecific + 208
33 CoreFoundation 0x010b9161 CFRunLoopRunInMode + 97
34 UIKit 0x002c8fa8 -[UIApplication _run] + 636
35 UIKit 0x002d542e UIApplicationMain + 1160
36 ContactMapper 0x00002638 main + 102
37 ContactMapper 0x000025c9 start + 53
)
terminate called after throwing an instance of 'NSException'
At first glance, this line is your problem:
[NSArray initWithArray:range:copyItems:]
at first glance, it might be that you need indexPath.row not [indexPath row].
Because iOS 4.2 is still under NDA, we cannot talk about 4.2-specific code.
We can however, talk about 4.1 and previous.
First, you're going to go to the 4.2 diffs page after you sign into the iOS Dev Center. This will tell you what's changed in that release. Since these pages only show release to release, look at the 3.2-4.0 diffs, 4.0-4.1 and 4.1-4.2 diffs. You are looking for a change in the API for UITableView or NSArray that obviously cannot be talked about here.
Second, you're going to download the WWDC '10 session on crash reports. It's a little tedious but the hour spent learning about how to read a crash report is WELL worth it.
Hope this helps!
The error you're getting tells you that the selector getObjects:range: is being sent to an __NSCFDictionary. So clearly the following:
[[[access.filteredResults objectAtIndex:[indexPath row]] addressArray] objectAtIndex:0]
... used to return an NSArray, but is now returning an NSDictionary.
I don't know what access is so I have no idea what else to say other than you can change the line you cited as the source of the error to:
NSDictionary* address = [NSDictionary dictionaryWithDictionary:[[[access.filteredResults objectAtIndex:[indexPath row]] addressArray] objectAtIndex:0]];
Once you've done that, whatever code follows that uses address clearly needs to also change to deal with the fact that you're no longer accessing an array.
You need the new iOS CookBook code