title: how to read stack trace error crash report
body: <p>Say I have the following (from TestFlight):</p>
  
  <pre><code>0 MyApp 0x000ef881 MyApp + 395393
  1 MyApp 0x000efc97 MyApp + 396439
  2 libsystem_c.dylib 0x37dc6539 _sigtramp + 48
  3 MyApp 0x00093e51 MyApp + 20049
  4 Foundation 0x338fd943 __NSFireDelayedPerform + 414
  5 CoreFoundation 0x36daea63 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 14
  6 CoreFoundation 0x36dae6c9 __CFRunLoopDoTimer + 364
  7 CoreFoundation 0x36dad29f __CFRunLoopRun + 1206
  8 CoreFoundation 0x36d304dd CFRunLoopRunSpecific + 300
  9 CoreFoundation 0x36d303a5 CFRunLoopRunInMode + 104
  10 GraphicsServices 0x32a0bfed GSEventRunModal + 156
  11 UIKit 0x319e0743 UIApplicationMain + 1090
  12 MyApp 0x00091dcf MyApp + 11727
  13 MyApp 0x00091d58 MyApp + 11608
  </code></pre>
  
  <p>Here's a longer one:</p>
  
  <pre><code>0 MyApp 0x00077881 MyApp + 395393
  1 MyApp 0x00077c97 MyApp + 396439
  2 libsystem_c.dylib 0x37e32539 _sigtramp + 48
  3 UIKit 0x31a206e7 -[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] + 178
  4 UIKit 0x31a207a5 -[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] + 368
  5 UIKit 0x31a207a5 -[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:] + 368
  6 UIKit 0x31a212df -[UIView(Internal) _addSubview:positioned:relativeTo:] + 334
  7 UIKit 0x31a2118b -[UIView(Hierarchy) addSubview:] + 30
  8 UIKit 0x31ab8d79 -[UITransitionView transition:fromView:toView:] + 980
  9 UIKit 0x31b0198f -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:] + 4842
  10 UIKit 0x31b5b461 -[UIViewController _dismissViewControllerWithTransition:from:completion:] + 1732
  11 UIKit 0x31abeaf1 -[UIViewController dismissViewControllerWithTransition:completion:] + 756
  12 MyApp 0x00019e73 MyApp + 11891
  13 MyApp 0x0002c3c3 MyApp + 86979
  14 Foundation 0x3395d50f __57-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_0 + 18
  15 CoreFoundation 0x36e12577 ___CFXNotificationPost_block_invoke_0 + 70
  16 CoreFoundation 0x36d9e0cf _CFXNotificationPost + 1406
  17 Foundation 0x338d13fb -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
  18 Foundation 0x338d2c2b -[NSNotificationCenter postNotificationName:object:] + 30
  19 MyApp 0x0002dd69 MyApp + 93545
  20 MyApp 0x00023a5b MyApp + 51803
  21 MyApp 0x0002425d MyApp + 53853
  22 MyApp 0x0001a5c1 MyApp + 13761
  23 UIKit 0x31bcdbc7 -[UIApplication _applicationOpenURL:payload:] + 270
  24 UIKit 0x31afaa51 -[UIApplication _callApplicationResumeHandlersForURL:payload:] + 104
  25 UIKit 0x31afa30d -[UIApplication _handleApplicationResumeEvent:] + 1496
  26 UIKit 0x31a1e961 -[UIApplication handleEvent:withNewEvent:] + 1080
  27 UIKit 0x31a1e3bf -[UIApplication sendEvent:] + 54
  28 UIKit 0x31a1dd2d _UIApplicationHandleEvent + 5808
  29 GraphicsServices 0x32a78e13 PurpleEventCallback + 882
  30 CoreFoundation 0x36e1a553 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 38
  31 CoreFoundation 0x36e1a4f5 __CFRunLoopDoSource1 + 140
  32 CoreFoundation 0x36e19343 __CFRunLoopRun + 1370
  33 CoreFoundation 0x36d9c4dd CFRunLoopRunSpecific + 300
  34 CoreFoundation 0x36d9c3a5 CFRunLoopRunInMode + 104
  35 GraphicsServices 0x32a77fed GSEventRunModal + 156
  36 UIKit 0x31a4c743 UIApplicationMain + 1090
  37 MyApp 0x00019dcf MyApp + 11727
  38 MyApp 0x00019d58 MyApp + 11608
  </code></pre>
  
  <p>Now I am pretty confused on what this error is? Any idea? Or maybe tutorial that would help me on how to read this in a more human way?</p>