I have no idea how to interpret a stack trace console output for my iPhone app. Can anyone point me to a primer or other source that would help me decipher it? Here's the output in case you can explain the error. I'm interested also in learning how to read them on my own.
[ERROR] The application has crashed with an unhandled exception. Stack trace:
0 CoreFoundation 0x023a158c __exceptionPreprocess + 156
1 libobjc.A.dylib 0x024f5313 objc_exception_throw + 44
2 CoreFoundation 0x02359ef8 +[NSException raise:format:arguments:] + 136
3 Foundation 0x007063bb -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116
4 UIKit 0x00989e8b -[UITableView(_UITableViewPrivate) _endCellAnimationsWithContext:] + 8420
5 UIKit 0x00978d36 -[UITableView insertRowsAtIndexPaths:withRowAnimation:] + 56
6 mobiletributes-app 0x0009ef7e -[TiUITableView dispatchAction:] + 7774
7 Foundation 0x0068a94e __NSThreadPerformPerform + 251
8 CoreFoundation 0x023828ff __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
9 CoreFoundation 0x022e088b __CFRunLoopDoSources0 + 571
10 CoreFoundation 0x022dfd86 __CFRunLoopRun + 470
11 CoreFoundation 0x022df840 CFRunLoopRunSpecific + 208
12 CoreFoundation 0x022df761 CFRunLoopRunInMode + 97
13 GraphicsServices 0x041a71c4 GSEventRunModal + 217
14 GraphicsServices 0x041a7289 GSEventRun + 115
15 UIKit 0x00919c93 UIApplicationMain + 1160
16 mobiletributes-app 0x0000473a main + 410
17 mobiletributes-app 0x00003005 start + 53
the code execution is from bottom to top (wikipedia). without seeing any code it's difficult. you're adding a tableViewRow at a specific index and it fails:
[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:]
[UITableView(_UITableViewPrivate) _endCellAnimationsWithContext:]
[UITableView insertRowsAtIndexPaths:withRowAnimation:]
maybe you're adding a row at an invalid index or to a section that doesn't exist.
Related
I have one application and in beta testing i got my application crash but i am not able to understand what is wrong with it, can you suggest me where to look, Thanks :)
0 TurfNutritionTool_ver_5.1 0x00189642 testflight_backtrace + 142
1 TurfNutritionTool_ver_5.1 0x0018a1d0 TFSignalHandler + 212
2 libsystem_c.dylib 0x3174872e _sigtramp + 42
3 UIKit 0x362f2aa0 -[UITableView dealloc] + 56
4 CoreFoundation 0x317b5c42 -[NSObject(NSObject) release] + 30
5 libobjc.A.dylib 0x3125d50c objc_setProperty_non_gc + 120
6 libobjc.A.dylib 0x31255046 objc_setProperty + 26
7 TurfNutritionTool_ver_5.1 0x001051c8 -[TNTScenarioViewController setScenarioTable:] (TNTScenarioViewController.m:15)
8 TurfNutritionTool_ver_5.1 0x00103610 -[TNTScenarioViewController viewDidUnload] (TNTScenarioViewController.m:160)
9 UIKit 0x362a9a28 -[UIViewController unloadViewForced:] + 172
10 UIKit 0x362b96b8 -[UIViewController unloadViewIfReloadable] + 16
11 UIKit 0x3630012c -[UIViewController purgeMemoryForReason:] + 40
12 UIKit 0x3630014c -[UIViewController didReceiveMemoryWarning] + 16
13 TurfNutritionTool_ver_5.1 0x00102682 -[TNTScenarioViewController didReceiveMemoryWarning] (TNTScenarioViewController.m:40)
14 UIKit 0x36300162 -[UIViewController _didReceiveMemoryWarning:] + 14
15 Foundation 0x3113f182 _nsnote_callback + 142
16 CoreFoundation 0x3182020e __CFXNotificationPost_old + 402
17 CoreFoundation 0x317baeea _CFXNotificationPostNotification + 118
18 Foundation 0x3113c5d2 -[NSNotificationCenter postNotificationName:object:userInfo:] + 70
19 Foundation 0x3113e1c0 -[NSNotificationCenter postNotificationName:object:] + 24
20 UIKit 0x362d6360 -[UIApplication _performMemoryWarning] + 48
21 UIKit 0x362d6d82 -[UIApplication _receivedMemoryNotification] + 126
22 UIKit 0x362d4506 _memoryStatusChanged + 42
23 CoreFoundation 0x31820d68 __CFNotificationCenterDarwinCallBack + 24
24 CoreFoundation 0x3181dbde __CFMachPortPerform + 210
25 CoreFoundation 0x31828a96 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 26
26 CoreFoundation 0x3182a83e __CFRunLoopDoSource1 + 166
27 CoreFoundation 0x3182b60c __CFRunLoopRun + 520
28 CoreFoundation 0x317bbec2 CFRunLoopRunSpecific + 230
29 CoreFoundation 0x317bbdca CFRunLoopRunInMode + 58
30 GraphicsServices 0x336d641e GSEventRunModal + 114
31 GraphicsServices 0x336d64ca GSEventRun + 62
32 UIKit 0x361abd68 -[UIApplication _run] + 404
33 UIKit 0x361a9806 UIApplicationMain + 670
34 TurfNutritionTool_ver_5.1 0x000edb68 main (main.m:14)
35 TurfNutritionTool_ver_5.1 0x000edb27 start + 39
Are you familiar with the concept of a stack trace? What you are looking at are the lines of code execution from the crash (0) back to a recent frame entry. As such, this is referred to as a 'back trace' since it goes backwards from the point that the code stopped executing.
I have no knowledge of your code, but you can see from line 14 of the back trace that you received a low memory warning. This warning caused a chain of unload events, including a deallocation of a UITableView (line 3).
This is immediately followed by the _sigtramp, which probably indicates an EXC_BAD_ACCESS. My guess, without seeing the rest of your code, is that you are accessing something that has been released by the low memory unload situation.
I have the following crash that I can't replicate on demand but does happen enough to get noticed by the users.
This crash report has been symbolicated as well. How would you find out the cause!!! This only seems to happen on 4.1
Exception Type: SIGSEGV
Exception Codes: SEGV_ACCERR at 0x9f069184
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x000027d8 objc_msgSend + 16
1 CoreFoundation 0x0007d749 ____CFXNotificationPost_old_block_invoke_1 + 45
2 libSystem.B.dylib 0x000d5984 _dispatch_call_block_and_release + 20
3 libSystem.B.dylib 0x000d66b0 _dispatch_continuation_pop + 72
4 libSystem.B.dylib 0x000d69fc _dispatch_main_queue_callback_4CF + 220
5 CoreFoundation 0x0002789b __CFRunLoopRun + 1335
6 CoreFoundation 0x00027277 CFRunLoopRunSpecific + 231
7 CoreFoundation 0x0002717f CFRunLoopRunInMode + 59
8 GraphicsServices 0x000045f3 GSEventRunModal + 115
9 GraphicsServices 0x0000469f GSEventRun + 63
10 UIKit 0x00004123 -[UIApplication _run] + 403
11 UIKit 0x0000212f UIApplicationMain + 671
12 MyApp 0x000024e3 main (main.m:17)
I have since managed to get a little more info, but not much.
2012-02-12 18:03:04.556 MyApp[462:307] (null): unrecognized selector sent to class 0x3e0a360c
2012-02-12 18:03:04.618 MyApp[462:307] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '(null): unrecognized selector sent to class 0x3e0a360c'
*** Call stack at first throw:
(
0 CoreFoundation 0x33506ed3 __exceptionPreprocess + 114
1 libobjc.A.dylib 0x30412811 objc_exception_throw + 24
2 CoreFoundation 0x335086ff +[NSObject(NSObject) doesNotRecognizeSelector:] + 102
3 CoreFoundation 0x334b01d9 ___forwarding___ + 508
4 CoreFoundation 0x334aff90 _CF_forwarding_prep_0 + 48
5 Foundation 0x302a86b3 _nsnote_callback + 142
6 CoreFoundation 0x334e4749 ____CFXNotificationPost_old_block_invoke_1 + 44
7 libSystem.B.dylib 0x31d05984 _dispatch_call_block_and_release + 20
8 libSystem.B.dylib 0x31d066b0 _dispatch_continuation_pop + 72
9 libSystem.B.dylib 0x31d069fc _dispatch_main_queue_callback_4CF + 220
10 CoreFoundation 0x3348e89b __CFRunLoopRun + 1334
11 CoreFoundation 0x3348e277 CFRunLoopRunSpecific + 230
12 CoreFoundation 0x3348e17f CFRunLoopRunInMode + 58
13 GraphicsServices 0x31b5e5f3 GSEventRunModal + 114
14 GraphicsServices 0x31b5e69f GSEventRun + 62
15 UIKit 0x341bd123 -[UIApplication _run] + 402
16 UIKit 0x341bb12f UIApplicationMain + 670
Now all of my addObservers are block based so I can't see why it would lead to an unrecognised selector.
This way won't help us much while Debugging crash. I found one of the best way to Debug the code for Crash. Follow the link for debugging technique:
https://cocoadev.com/DebuggingAutorelease.html
You need to analyze your Console very carefully to see actually why the Crash occurs. This helped me in almost all of the Code that are without ARC enabled.
I have a table view in which Iam selecting a row of the table view and then it hits the web services, retrieves data and then displayed. Now this is my error log Iam getting.
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-
[__NSCFData setDownloadedLogoImage:]: unrecognized selector sent to instance 0x806cf90'
*** Call stack at first throw:
(
0 CoreFoundation 0x02abdb99 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x02c0d40e objc_exception_throw + 47
2 CoreFoundation 0x02abf6ab -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x02a2f2b6 ___forwarding___ + 966
4 CoreFoundation 0x02a2ee72 _CF_forwarding_prep_0 + 50
5 FlightSearch 0x000401ef -[AirlineNames connectionDidFinishImage:] + 168
6 FlightSearch 0x0002f535 -[SAHttpManager connectionDidFinishLoading:] + 195
7 Foundation 0x001acb96 -[NSURLConnection(NSURLConnectionReallyInternal) sendDidFinishLoading] + 108
8 Foundation 0x001acaef _NSURLConnectionDidFinishLoading + 133
9 CFNetwork 0x0307172f _ZN19URLConnectionClient23_clientDidFinishLoadingEPNS_26ClientConnectionEventQueueE + 285
10 CFNetwork 0x0313cfcf _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 389
11 CFNetwork 0x03066968 _ZN19URLConnectionClient13processEventsEv + 100
12 CFNetwork 0x030667e5 _ZN17MultiplexerSource7performEv + 251
13 CoreFoundation 0x02a9efaf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
14 CoreFoundation 0x029fd39b __CFRunLoopDoSources0 + 571
15 CoreFoundation 0x029fc896 __CFRunLoopRun + 470
16 CoreFoundation 0x029fc350 CFRunLoopRunSpecific + 208
17 CoreFoundation 0x029fc271 CFRunLoopRunInMode + 97
18 GraphicsServices 0x032b000c GSEventRunModal + 217
19 GraphicsServices 0x032b00d1 GSEventRun + 115
20 UIKit 0x00419af2 UIApplicationMain + 1160
21 FlightSearch 0x00001e86 main + 84
22 FlightSearch 0x00001e29 start + 53
23 ??? 0x00000001 0x0 + 1
)
terminate called after throwing an instance of 'NSException'
Kindly suggest me what should i do.
You're sending the message setDownloadedLogoImage: to an NSData object, which has no idea what to do with it! One of two things has happened:
1) You have not retained something. Take a look at whatever object you expect to call setDownloadedLogoImage on and find out where you create it - you should probably be retaining it there ;)
2) (less likely) Your code is just wrong! Add it to your question and we can take a look.
When I search on TableView through TextDidChange which calls handleSearchTerm subroutine, it perfectly works. However, I removed TextDidChange and use SearchButtonClicked to update tableView (use same subroutine),it doesn't update TableView properly and crash when scroll(out of bound index in cellForRowAtIndex) even though datasource has been changed in subroutine. Any idea?
[78515:207] *** Terminating app due to uncaught exception 'NSRangeException', reason: '-[__NSCFArray objectAtIndex:]: index (8) beyond bounds (8)'
*** Call stack at first throw:
(
0 CoreFoundation 0x00db8be9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f0d5c2 objc_exception_throw + 47
2 CoreFoundation 0x00d71628 +[NSException raise:format:arguments:] + 136
3 CoreFoundation 0x00d7159a +[NSException raise:format:] + 58
4 CoreFoundation 0x00dae8c9 _NSArrayRaiseBoundException + 121
5 CoreFoundation 0x00db0027 -[__NSCFArray objectAtIndex:] + 87
6 DrinkGuide_v1.0 0x00005d6c -[AllDrinkTableViewController tableView:cellForRowAtIndexPath:] + 371
7 UIKit 0x003357fa -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] + 634
8 UIKit 0x0032b77f -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:] + 75
9 UIKit 0x00340450 -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow:] + 1561
10 UIKit 0x00338538 -[UITableView layoutSubviews] + 242
11 QuartzCore 0x01c76451 -[CALayer layoutSublayers] + 181
12 QuartzCore 0x01c7617c CALayerLayoutIfNeeded + 220
13 QuartzCore 0x01c6f37c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
14 QuartzCore 0x01c6f0d0 _ZN2CA11Transaction6commitEv + 292
15 QuartzCore 0x01c9f7d5 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
16 CoreFoundation 0x00d99fbb __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27
17 CoreFoundation 0x00d2f0e7 __CFRunLoopDoObservers + 295
18 CoreFoundation 0x00cf7bd7 __CFRunLoopRun + 1575
19 CoreFoundation 0x00cf7240 CFRunLoopRunSpecific + 208
20 CoreFoundation 0x00cf7161 CFRunLoopRunInMode + 97
21 GraphicsServices 0x016ed268 GSEventRunModal + 217
22 GraphicsServices 0x016ed32d GSEventRun + 115
23 UIKit 0x002d042e UIApplicationMain + 1160
24 DrinkGuide_v1.0 0x0000298c main + 102
25 DrinkGuide_v1.0 0x0000291d start + 53
)
terminate called after throwing an instance of 'NSException'
I think crash is caused by cellForRowAtIndexPath, can you please post code for following methods :
cellForRowAtIndexPath
SearchButtonClicked
yourSubroutine you are calling
also mention your array or collection from which you are loading your table.
Thanks,
as per your crash log it seems you are retuning wrong no of cells in you noOfcellsInsection method. You are getting array out of bounds error.When you are doing search make a flag true and according to that flag return no of rows for the table view using your filtered array's count.
I could not figure out when exactly crash, because sometimes it happens and most time not. It crash when added new annotation and the pin has dropped down, or when the pin location has changed(drag).
My ios version is 4.3.1
Crash:
Thread 0 Crashed:
0 libobjc.A.dylib 0x3489dc98 objc_msgSend + 16
1 MapKit 0x336699a4 -[MKMapView mapTileViewDidStartLoading:] + 40
2 CoreFoundation 0x33589efc -[NSObject(NSObject) performSelector:withObject:] + 16
3 Foundation 0x327657a2 __NSThreadPerformPerform + 262
4 CoreFoundation 0x335f3a72 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 6
5 CoreFoundation 0x335f5758 __CFRunLoopDoSources0 + 376
6 CoreFoundation 0x335f64e4 __CFRunLoopRun + 224
7 CoreFoundation 0x33586ebc CFRunLoopRunSpecific + 224
8 CoreFoundation 0x33586dc4 CFRunLoopRunInMode + 52
9 GraphicsServices 0x33187418 GSEventRunModal + 108
10 GraphicsServices 0x331874c4 GSEventRun + 56
Sorry for my English, thanks in advence
mapTileViewDidStartLoading change this to mapViewDidStartLoading