I have a crash in Crashlytics in line 83 of NSManagedObjectContext+MagicalSaves.m (just sporadically, but 2% of my users have it, being called form different corners. I am wondering why the try catch of MagicalRecord does not help. Here is more insight of the crash:
12 CoreData 0x0000000187f1a354 -[NSManagedObjectContext(_NestedContextSupport) executeRequest:withContext:error:] + 176
13 CoreData 0x0000000187e9d400 -[NSManagedObjectContext save:] + 1284
14 Schlaukopf 0x000000010000c18c __70-[NSManagedObjectContext(MagicalSaves) MR_saveWithOptions:completion:]_block_invoke15 (NSManagedObjectContext+MagicalSaves.m:83)
15 CoreData 0x0000000187f11270 developerSubmittedBlockToNSManagedObjectContextPerform + 200
16 CoreData 0x0000000187f11474 -[NSManagedObjectContext performBlockAndWait:] + 232
17 "myApp" 0x000000010000bfc8 -[NSManagedObjectContext(MagicalSaves) MR_saveWithOptions:completion:] (NSManagedObjectContext+MagicalSaves.m:129)
Does anybody have a glue what to consider, how to solve?
Related
I had submit application several time to review.
But every time Apple tester said the application crash.
I test on my application in environment IPV4.
Totally no crash, but Apple tester said crash when launch as below.
It's the problem about IPV6? I can't test in environment IPV6.
Thank you for your resubmission. We were unable to review your app as
it crashed on launch. We have attached detailed crash logs to help
troubleshoot this issue.
Steps to reproduce:
1) Start the app on a device 2) the app attempts to launch and crashes
Next Steps
Please revise your app and test it on a device while connected to an
IPv6 network (all apps must support IPv6) to ensure it will launch
without crashing.
Date/Time: 2016-10-25 13:02:41.6759 -0700
Launch Time: 2016-10-25 13:02:40.6012 -0700
OS Version: iPhone OS 10.0.2 (14A456)
Report Version: 104
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x000000010014c3fc
Termination Signal: Trace/BPT trap: 5
Termination Reason: Namespace SIGNAL, Code 0x5
Terminating Process: exc handler [0]
Triggered by Thread: 0
Filtered syslog:
None found
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 BBBApps 0x000000010014c3fc 0x1000e4000 + 427004
1 BBBApps 0x0000000100149420 0x1000e4000 + 414752
2 UIKit 0x000000018d0a342c 0x18d021000 + 533548
3 UIKit 0x000000018d2b3b70 0x18d021000 + 2698096
4 UIKit 0x000000018d2b98e0 0x18d021000 + 2722016
5 UIKit 0x000000018d2ce080 0x18d021000 + 2805888
6 UIKit 0x000000018d2b68c4 0x18d021000 + 2709700
7 FrontBoardServices 0x0000000188d898bc 0x188d4f000 + 239804
8 FrontBoardServices 0x0000000188d89728 0x188d4f000 + 239400
9 FrontBoardServices 0x0000000188d89ad0 0x188d4f000 + 240336
10 CoreFoundation 0x0000000187196278 0x1870b9000 + 905848
11 CoreFoundation 0x0000000187195bc0 0x1870b9000 + 904128
12 CoreFoundation 0x00000001871937c0 0x1870b9000 + 894912
13 CoreFoundation 0x00000001870c2048 0x1870b9000 + 36936
14 UIKit 0x000000018d09c5dc 0x18d021000 + 505308
15 UIKit 0x000000018d097360 0x18d021000 + 484192
16 BBBApps 0x00000001000ea5e4 0x1000e4000 + 26084
17 libdyld.dylib 0x00000001860a45b8 0x1860a0000 + 17848
Here the crash report from Crashlytics:
#0. Crashed: com.apple.main-thread
0 BBBApps 0x10009183c specialized AppDelegate.application(UIApplication, didFinishLaunchingWithOptions : [NSObject : AnyObject]?) -> Bool (AppDelegate.swift:39)
1 BBBApps 0x10008ecbc #objc AppDelegate.application(UIApplication, didFinishLaunchingWithOptions : [NSObject : AnyObject]?) -> Bool (AppDelegate.swift)
2 UIKit 0x19235b42c -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 400
3 UIKit 0x19256bb70 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3524
4 UIKit 0x1925718e0 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1656
5 UIKit 0x192586080 __84-[UIApplication _handleApplicationActivationWithScene:transitionContext:completion:]_block_invoke.3134 + 48
6 UIKit 0x19256e8c4 -[UIApplication workspaceDidEndTransaction:] + 168
7 FrontBoardServices 0x18e0418bc __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 36
8 FrontBoardServices 0x18e041728 -[FBSSerialQueue _performNext] + 176
9 FrontBoardServices 0x18e041ad0 -[FBSSerialQueue _performNextFromRunLoopSource] + 56
10 CoreFoundation 0x18c44e278 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
11 CoreFoundation 0x18c44dbc0 __CFRunLoopDoSources0 + 524
12 CoreFoundation 0x18c44b7c0 __CFRunLoopRun + 804
13 CoreFoundation 0x18c37a048 CFRunLoopRunSpecific + 444
14 UIKit 0x1923545dc -[UIApplication _run] + 608
15 UIKit 0x19234f360 UIApplicationMain + 208
16 BBBApps 0x10008f9d4 main (AppDelegate.swift:17)
17 libdispatch.dylib 0x18b35c5b8 (Missing)
You can use your mac to share an IPV6 network.
Open System Preferences
Option-click on the Sharing preference pane
Option-click on Internet Sharing
A Create IPv6 Only Network checkbox will appear
Check Create IPv6 Only Network (this may also be labeled Create NAT64 Network)
Select the interface to share out over (usually this will be WiFi, to allow iOS devices to connect.)
Check the box to start internet sharing
Source
Trace/BPT trap 5 is usually related to the missing shared libraries (.dylib files).
In your case the following line suggests you which one is missing:
17 libdispatch.dylib 0x18b35c5b8 (Missing)
Make sure your app has proper access to it (compiled with it) or you have included it correctly along with your app.
You can use otool (-L) command-line tool to check more details about missing dependencies.
After releasing the new version of my iOS application , I am getting the following crash frequently.
Crashed: WebThread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS at 0x80000012
This is one of the irritating crashes where stack trace didn't give any clues related to where its crashing or what causes the crash. One major thing is that this crash is only there in iOS8. Please find below the stack trace :
0 libobjc.A.dylib objc_msgSend + 5 release
1 CoreFoundation CFRelease + 600
2 QuartzCore CA::release_objects(X::List<void const*>*) + 16
3 QuartzCore -[CAAnimation dealloc] + 54
4 libobjc.A.dylib objc_object::sidetable_release(bool) + 166
5 libobjc.A.dylib (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 404
6 CoreFoundation _CFAutoreleasePoolPop + 16
7 Foundation -[NSAutoreleasePool drain] + 122
8 CFNetwork AutoAutoreleasePool::~AutoAutoreleasePool() + 24
9 CFNetwork ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 166
10 CFNetwork RunloopBlockContext::_invoke_block(void const*, void*) + 60
11 CoreFoundation CFArrayApplyFunction + 36
12 CFNetwork RunloopBlockContext::perform() + 182
13 CFNetwork MultiplexerSource::perform() + 216
14 CFNetwork MultiplexerSource::_perform(void*) + 48
Any hint would be greatly appreciated. Thanks in advance.
Most of the time, EXC_BAD_ACCESS results from sending a message to an object that has already been released. While this is harder-than-before to do under ARC, it is still possible.
The KERN_INVALID_ADDRESS part just tells you that the memory you tried to access isn't part of your app's memory space, which lends credence to the released-object-handle hypothesis.
To debug previously released objects (called "Zombie" objects), turn on NSZombies in the debugger. In XCode 7...
CMD-SHIFT- to bring up manage schemes.
Select your scheme
Select Diagnostics
Check Enable Zombie Objects
NOTE: you only want to do this on debug builds, as zombie-objects take-up a ton of memory and hurt performance overall. Still, it's an excellent debugging tool.
I'm having trouble understanding which thread's information to dig into, in a crash log I got from iTunes.
It says that Thread 16 crashed. So, do I have to examine the code inside [FreePlayMenuScene dealloc] or is there a chance that the cause is located in another thread? For example, in Thread 0 there is a mention to NSDateFormatter, which I can't understand if is relevant or not.
To ask this as a generic question, when reading crash logs, should we only examine the thread that crashed or there may be helpful information in other threads as well? Unfortunately, I couldn't find a similar question here or anywhere online.
Here's the code:
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000
Crashed Thread: 16
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libicucore.A.dylib 0x3333feac udat_close + 0
1 CoreFoundation 0x37cd60d0 __CFDateFormatterDeallocate + 12
2 CoreFoundation 0x37c513ce CFRelease + 290
3 Foundation 0x354795ea -[NSDateFormatter _clearFormatter] + 22
4 Foundation 0x354a4b44 -[NSDateFormatter dealloc] + 52
5 libobjc.A.dylib 0x34b95484
6 CoreFoundation 0x37c5343c _CFAutoreleasePoolPop + 12
7 Foundation 0x35500978 __NSThreadPerformPerform + 600
8 CoreFoundation 0x37ce5680 9 CoreFoundation 0x37ce4ee4 __CFRunLoopDoSources0 + 208
10 CoreFoundation 0x37ce3cb2 __CFRunLoopRun + 642
11 CoreFoundation 0x37c56eb8 CFRunLoopRunSpecific + 352
12 CoreFoundation 0x37c56d44 CFRunLoopRunInMode + 100
13 GraphicsServices 0x345592e6 GSEventRunModal + 70
14 UIKit 0x345c32fc UIApplicationMain + 1116
15 AClockworkBrain 0x0000365a main (main.m:13)
16 AClockworkBrain 0x0000361c start + 36
...
...
Thread 16 Crashed:
0 AClockworkBrain 0x001d7cd2 -[CCScheduler unscheduleAllSelectorsForTarget:] + 126
1 AClockworkBrain 0x001ca8f8 -[CCNode unscheduleAllSelectors] + 48
2 AClockworkBrain 0x001c9526 -[CCNode cleanup] + 38
3 AClockworkBrain 0x001f1016 -[CCArray makeObjectsPerformSelector:] + 54
4 AClockworkBrain 0x001c9550 -[CCNode cleanup] + 80
5 AClockworkBrain 0x001f1016 -[CCArray makeObjectsPerformSelector:] + 54
6 AClockworkBrain 0x001c9550 -[CCNode cleanup] + 80
7 AClockworkBrain 0x001c9cf4 -[CCNode removeAllChildrenWithCleanup:] + 156
8 AClockworkBrain 0x00078ecc -[FreePlayMenuScene dealloc] (FreePlayMenuScene.m:776)
9 Foundation 0x35500e4c __NSFinalizeThreadData + 1004
10 CoreFoundation 0x37ce0f7e __CFTSDFinalize + 62
11 libsystem_c.dylib 0x37ab9128 _pthread_tsd_cleanup + 172
12 libsystem_c.dylib 0x37ab8dfe _pthread_exit + 114
13 libsystem_c.dylib 0x37ad2160 pthread_exit + 24
14 Foundation 0x35489226 +[NSThread exit] + 6
15 Foundation 0x35500696 __NSThread__main__ + 998
16 libsystem_c.dylib 0x37ac630e _pthread_start + 306
17 libsystem_c.dylib 0x37ac61d4 thread_start + 4
Thanks a lot.
Well, never say never: there's always going to be a case where one thread does something that causes another thread to throw an exception and crash. However, when that happens you usually have some kind of timing problem or race condition, and it would be rare that the troublemaking thread was always in the same place when the crash occurs. In those situations, the bad thread "sets a trap" and then the crashing thread gets caught in it.
In your case, I don't think the date formatting has anything to do with it, unless you were sharing an NSDateFormatter on multiple threads (don't, it's not thread-safe).
Since the exception is EXC_BAD_ACCESS (access an invalid memory address) and it is happening in [CCScheduler unscheduleAllSelectorsForTarget:], my guess is that a bad pointer is lurking somewhere in your Cocos2D scene graph. Maybe you added a node that got overreleased? Hard to say. In this case, it's not necessarily another thread that is at fault, but it looks like the problem was set up by some other piece of code, which cause a problem when this code stumbled onto it.
The most important is the thread that actually crashed. But keep in mind that the crash could be affected by what is happening in other threads at the time. In most cases though, only the crashed thread is relevant. I'd worry about other threads if the crash was actually related to things being done across multiple threads or if things are in multiple threads and shouldn't be.
In the log you posted, it just so happens that at the time of the crash, a date formatter was being deallocated on the main thread. Probably not at all related to the issues with your FreePlayMenuScene issue.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
I get error 0x8badf00d in iPhone app, and is not the usual suspect
This is my first post here, so if you think I am doing something wrong, please tell me ;D
First of all, I've been doing research with no success, and I can't figure out what's happening.
I'm developing a universal app and it has worked well on every device I used to test it (iPhone 3GS, iPhone 4, iPhone 4S, iPad 2 and iPod Touch 4G). But some customers have reported the app closes at launch (also in different models and iOS versions, so there seems there isn't a common factor. I mean, the app does not fail only in a specific device model/iOS version).
One of them was so kind that he gave me the crash reporter. It appeared to be a common 0x8badf00d problem (I'll have to optimize the startup somehow so that the didFinishLaunchingWithOptions returns as fast as possible, I know). Restarted the device, closed the other apps in background/suspended and then it worked. Here it is that crash reporter (I don't know why it hasn't been symbolicated with the same degree as the second crash reporter posted below. I imported it on the Xcode organizer and I have the necessary files to symbolicate):
Date/Time: 2012-05-15 00:42:19.074 +0200
OS Version: iPhone OS 5.0.1 (9A405)
Report Version: 104
Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 0
Application Specific Information:
com.myApp.free failed to resume in time
Elapsed total CPU time (seconds): 2.400 (user 2.400, system 0.000), 12% CPU
Elapsed application CPU time (seconds): 0.073, 0% CPU
Last Exception Backtrace:
0 0x3293a8bf + 848537791
1 0x356021e5 + 895492581
2 0x32883b6b + 847788907
3 myApp 0x0000a82d -[PhoneViewController requestFinished:] (PhoneViewController.m:1679)
4 0x3289922b + 847876651
5 myApp 0x0002a0b1 -[ASIHTTPRequest reportFinished] (ASIHTTPRequest.m:2028)
6 0x3289922b + 847876651
7 0x31fc2757 + 838608727
8 0x3290eb03 + 848358147
9 0x3290e365 + 848356197
10 0x3290d075 + 848351349
11 0x328904dd + 847840477
12 0x328903a5 + 847840165
13 0x335a8fcd + 861573069
14 0x36953743 + 915748675
15 myApp 0x000033af main (main.m:27)
16 myApp 0x00003368 0x1000 + 9064
Thread 0:
0 ??? 0x3465c32c 0 + 879084332
1 ??? 0x35e77fe6 0 + 904364006
2 ??? 0x336cbf66 0 + 862764902
3 ??? 0x336c9348 0 + 862753608
4 ??? 0x356022de 0 + 895492830
5 ??? 0x336c93c0 0 + 862753728
6 ??? 0x336c944c 0 + 862753868
7 ??? 0x336ca820 0 + 862758944
8 ??? 0x35602230 0 + 895492656
9 ??? 0x32890540 0 + 847840576
10 ??? 0x328903a0 0 + 847840160
11 ??? 0x335a8fc8 0 + 861573064
12 ??? 0x3695373e 0 + 915748670
13 myApp 0x000033aa main (main.m:27)
14 myApp 0x00003364 0x1000 + 9060
Later one of my mates here brought an iPhone 4 in which the app didn't work, apparently because of the same problem. The crash reporter shown 0x8badf00d as well, but the previous rebooting 'solution' didn't work. Besides, there was a difference between these two crashes: The first one crashed in a few seconds while the splash image was showing up, while the second one took much more time (I did several tries and it remained slower than the first one). I plugged the iPhone to see what was happening in the Xcode console (posted some lines after the crash reporter). Here is the crash reporter...
Date/Time: 2012-05-15 11:57:30.227 +0200
OS Version: iPhone OS 5.1 (9B176)
Report Version: 104
Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 0
Application Specific Information:
com.myApp.free failed to launch in time
Elapsed total CPU time (seconds): 12.410 (user 12.410, system 0.000), 63% CPU
Elapsed application CPU time (seconds): 7.302, 37% CPU
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x35069dcc __open + 8
1 DataDetectorsCore 0x30c8ca60 DDmmap + 8
2 DataDetectorsCore 0x30c860ea DDCacheCreateFromFileAtPathWithExtraChecks + 14
3 DataDetectorsCore 0x30c860b8 DDCacheCreateFromSystemCache + 1252
4 DataDetectorsCore 0x30c85a16 DDScannerCreateWithType + 14
5 DataDetectorsCore 0x30c85aaa DDScannerCreate + 6
6 Foundation 0x3118cac8 -[NSDataDetector initWithTypes:error:] + 960
7 Foundation 0x3118c6ec +[NSDataDetector dataDetectorWithTypes:error:] + 44
8 myApp 0x00004c0c -[PhoneViewController getTelfNumbers] (PhoneViewController.m:213)
9 myApp 0x00007062 -[PhoneViewController viewDidLoad] (PhoneViewController.m:864)
10 UIKit 0x32479e3e -[UIViewController awakeFromNib] + 106
11 UIKit 0x3250c2ec -[UINib instantiateWithOwner:options:] + 1236
12 UIKit 0x3247a4ac -[UIViewController _loadViewFromNibNamed:bundle:] + 240
13 UIKit 0x32357dfa -[UIViewController loadView] + 82
14 UIKit 0x322cddb8 -[UIViewController view] + 44
15 UIKit 0x3232d7de -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] + 86
16 UIKit 0x3232d77c -[UITabBarController transitionFromViewController:toViewController:] + 24
17 UIKit 0x3232d0b6 -[UITabBarController _setSelectedViewController:] + 294
18 UIKit 0x3232cdea -[UITabBarController setSelectedIndex:] + 234
19 myApp 0x00003f1e -[AppDelegate application:didFinishLaunchingWithOptions:] (AppDelegate.m:294)
20 UIKit 0x322cce4c -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1176
21 UIKit 0x322c697e -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 402
22 UIKit 0x32294c64 -[UIApplication handleEvent:withNewEvent:] + 1004
23 UIKit 0x32294708 -[UIApplication sendEvent:] + 48
24 UIKit 0x322940dc _UIApplicationHandleEvent + 5820
25 GraphicsServices 0x364c9224 PurpleEventCallback + 876
26 CoreFoundation 0x3524a51c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
27 CoreFoundation 0x3524a4be __CFRunLoopDoSource1 + 134
28 CoreFoundation 0x3524930c __CFRunLoopRun + 1364
29 CoreFoundation 0x351cc49e CFRunLoopRunSpecific + 294
30 CoreFoundation 0x351cc366 CFRunLoopRunInMode + 98
31 UIKit 0x322c5a0c -[UIApplication _run] + 544
32 UIKit 0x322c2e76 UIApplicationMain + 1074
33 myApp 0x000033a8 main (main.m:27)
34 myApp 0x00003360 0x1000 + 9056
...and here the lines thrown on the console:
2012-05-16 10:52:26.440 myApp[315:707] DDCache: mmap failed with error 12
2012-05-16 10:52:26.444 myApp[315:707] DataDetectorsCore: mmapping the cache file failed
2012-05-16 10:52:26.466 myApp[315:707] DDCache: mmap failed with error 12
2012-05-16 10:52:26.470 myApp[315:707] DataDetectorsCore: mmapping the cache file failed
2012-05-16 10:52:26.485 myApp[315:707] DDCache: mmap failed with error 12
2012-05-16 10:52:26.490 myApp[315:707] DataDetectorsCore: mmapping the cache file failed
2012-05-16 10:52:26.509 myApp[315:707] DDCache: mmap failed with error 12
2012-05-16 10:52:26.514 myApp[315:707] DataDetectorsCore: mmapping the cache file failed
2012-05-16 10:52:26.529 myApp[315:707] DDCache: mmap failed with error 12
2012-05-16 10:52:26.533 myApp[315:707] DataDetectorsCore: mmapping the cache file failed
2012-05-16 10:52:26.548 myApp[315:707] DDCache: mmap failed with error 12
[...]
(always the same two lines)
I have no clue of what to do now. The major part of the devices launched the app with no problems, another part of devices had the 'ate bad food' which disappeared after rebooting/closing some apps, and a few (by now, a customer's one and one of our devices) can't launch it even rebooting/closing apps.
As I said previously, there seems not to be the case of a iOS specific device/model nor iOS version. What's more weird is that Apple validated my app and they didn't reported any crash or bug. Well, in fact they did, they rejected the first binary I uploaded because I had no Info.plist, so it worked when debugging but it didn't when running it as a final app. That was fixed, but I let you know it just in case is related.
Any idea?
Thank you in advance!
PS: I'm not a native English speaker, so if there is something weird that you don't understand don't hesitate to ask and I'll try to explain it again with other words.
A possible reason for differences could be the amount of data you're working with.
As you already stated, you should probably optimized your startup. You are loading telephone numbers, right? If this might take some time, try to start and display the PhoneViewController with an activity indicator or similar, then start a thread to asynchronous load the data and update the view when done.
I have this crash issue after I upgrade using XCode 4.2. It never happened when I use 4.0.2 before. The strangest thing is that it happened intermittently, as it sometime happened and sometime it didn't. Please help me figuring out what the cause of the crash from the log below :
Interval Since Last Report: 627313 sec
Crashes Since Last Report: 59
Per-App Crashes Since Last Report: 14
Anonymous UUID: FF7C9791-6E3A-4A0C-AB83-35DE0C08166B
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Application Specific Information:
iPhone Simulator 272, iPhone OS 4.3.2 (iPhone/8H7)
iPhone Simulator 272, iPhone OS 4.3.2 (iPhone/8H7)
Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 libSystem.B.dylib 0x9639baa2 __semwait_signal + 10
1 libSystem.B.dylib 0x963c79c5 nanosleep$UNIX2003 + 188
2 libSystem.B.dylib 0x963c7903 usleep$UNIX2003 + 61
3 QuartzCore 0x0168549d CABackingStoreCollectBlocking + 209
4 UIKit 0x00f27e98 -[UIApplication _handleApplicationSuspend:eventInfo:] + 1719
5 UIKit 0x00f31039 -[UIApplication handleEvent:withNewEvent:] + 4127
6 UIKit 0x00f28abf -[UIApplication sendEvent:] + 71
7 UIKit 0x00f2df2e _UIApplicationHandleEvent + 7576
8 GraphicsServices 0x027f5992 PurpleEventCallback + 1550
9 CoreFoundation 0x01b9f944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
10 CoreFoundation 0x01affcf7 __CFRunLoopDoSource1 + 215
11 CoreFoundation 0x01afcf83 __CFRunLoopRun + 979
12 CoreFoundation 0x01afc840 CFRunLoopRunSpecific + 208
13 CoreFoundation 0x01afc761 CFRunLoopRunInMode + 97
14 GraphicsServices 0x027f41c4 GSEventRunModal + 217
15 GraphicsServices 0x027f4289 GSEventRun + 115
16 UIKit 0x00f31c93 UIApplicationMain + 1160
17 XXXXXXXXXXXXXX 0x00184f69 main + 121 (main.m:14)
18 XXXXXXXXXXXXXX 0x00002af5 start + 53
There's always these little problems in certain projects whenever xcode updates. There may be a solution to this problem that doesn't involve my solution, so I would wait for other answers before using mine.
I would always just copy/paste all of my important code, organized in text documents so that I can tell what everything used to be, then I would Un-Install (after uninstalling, delete every subfolder and all leftovers of the previous version. All projects and classes) then Re-install, create new projects and copy/paste your old code. This SHOULD fix the problem, but as I said this is a hassle so see if anyone else cam come with a more specific answer to your problem.