Determine Cause of Crash

Question

My app uses Parse. It puts all objects from class of 'Prayers' into a TableView. When it loads, it remembers all previously loaded items, searches for new ones. Starting today, it began crashing when a new item was added. My crash log looks like this, any thoughts?:

Date/Time:           2015-02-13 14:13:25.028 -0600
Launch Time:         2015-02-13 14:13:23.173 -0600
OS Version:          iOS 8.1.3 (12B466)
Report Version:      105

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread:  0

Last Exception Backtrace:
0   CoreFoundation                  0x185ce259c __exceptionPreprocess + 132
1   libobjc.A.dylib                 0x1964340e4 objc_exception_throw + 60
2   CoreFoundation                  0x185bc762c -[__NSArrayM objectAtIndex:] + 264
3   iPrayed                         0x1000227a4 0x100014000 + 59300
4   UIKit                           0x18a5a9b7c __66-[UISectionRowData refreshWithSection:tableView:tableViewRowData:]_block_invoke + 500
5   UIKit                           0x18a56b9bc -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 3872
6   UIKit                           0x18a56dc10 -[UITableViewRowData numberOfRows] + 112
7   UIKit                           0x18a56db4c -[UITableView noteNumberOfRowsChanged] + 156
8   UIKit                           0x18a56d498 -[UITableView reloadData] + 1304
9   iPrayed                         0x100091730 0x100014000 + 513840
10  iPrayed                         0x1000c9370 0x100014000 + 742256
11  libdispatch.dylib               0x196a793ac _dispatch_call_block_and_release + 24
12  libdispatch.dylib               0x196a7936c _dispatch_client_callout + 16
13  libdispatch.dylib               0x196a7d980 _dispatch_main_queue_callback_4CF + 932
14  CoreFoundation                  0x185c99fa4 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
15  CoreFoundation                  0x185c9804c __CFRunLoopRun + 1492
16  CoreFoundation                  0x185bc50a4 CFRunLoopRunSpecific + 396
17  GraphicsServices                0x18ed5f5a4 GSEventRunModal + 168
18  UIKit                           0x18a4f6aa4 UIApplicationMain + 1488
19  iPrayed                         0x1000515e4 0x100014000 + 251364
20  libdyld.dylib                   0x196aa2a08 start + 4

You will need to symbolicate the crash first.The reason in this line - 3 iPrayed 0x1000227a4 0x100014000 + 59300 — Sandy, Feb 13 '15 at 22:46
Not sure exactly how to do that. I synced my phone, went to Library->Logs->CrashReporter->Mobile and found it, opened up Xcode, Windows ->Devices->This Device, and drug the .crash file into the window, and that is what it showed. — user717452, Feb 13 '15 at 22:54
Refer this link to symbolicate the crash report. http://stackoverflow.com/questions/26010303/symbolicate-crash-in-ios8-with-xcode-6-1 — Sandy, Feb 13 '15 at 22:58
Found it @Sandy thanks! The question for why it is crashing is at http://stackoverflow.com/questions/28510205/parse-pagination-not-working if you want to tackle — user717452, Feb 13 '15 at 23:02
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error **and the shortest code necessary to reproduce it in the question itself.** — nhgrif, Feb 14 '15 at 00:09

score 1 · Accepted Answer · answered Feb 13 '15 at 23:56

These lines seem to indicate that your crash is caused by an attempt to access a non-existant index of your array:

1 libobjc.A.dylib 0x1964340e4 objc_exception_throw + 60 2 CoreFoundation 0x185bc762c -[__NSArrayM objectAtIndex:] + 264

If you want any further help, I'd recommend posting the content of your table view methods.

Determine Cause of Crash

1 Answers1