我有一个应用程序的生产版本的崩溃日志。我如何弄清楚它崩溃的确切代码行？毋庸置疑，这个问题在办公室的任何设备上都无法重现。
Incident Identifier: 8ECB1402-12E9-4869-A5FE-DB5DD2383EDA
CrashReporter Key: TODO
Hardware Model: iPhone6,2
Process: Argus [2287]
Path: /private/var/mobile/Containers/Bundle/Application/BB7F6F60-2E8E-46A5-988E-38B9F618C254/Argus.app/Argus
Identifier: com.azumio.iphone.argus
Version: 3.12.370
Code Type: ARM
Parent Process: launchd [1]
Date/Time: 2015-01-24 02:55:02 +0000
OS Version: iPhone OS 8.1.2 (12B440)
Report Version: 104
Exception Type: SIGTRAP
Exception Codes: #0 at 0x1d64d4
Crashed Thread: 0
Thread 0 Crashed:
0 Argus 0x001d64d4 Argus.AZPedometerStepsSync.updateStatsToCheckIn (Argus.AZPedometerStepsSync)([Argus.AZPedometerData], checkIn : ObjectiveC.AZCheckIn) -> () + 7580
1 Argus 0x001de830 Argus.AZPedometerStepsSync.(startLiveImport (Argus.AZPedometerStepsSync) -> (Swift.Int, checkIn : ObjectiveC.AZCheckIn, startWithFastImport : Swift.Bool) -> ()).(closure #1) + 136
2 Argus 0x001d8840 partial apply forwarder for Argus.AZPedometerStepsSync.(startLiveImport (Argus.AZPedometerStepsSync) -> (Swift.Int, checkIn : ObjectiveC.AZCheckIn, startWithFastImport : Swift.Bool) -> ()).(closure #1) + 100
3 Argus 0x001d88ac partial apply forwarder for reabstraction thunk helper from @callee_owned (@owned [Argus.AZPedometerData], @unowned Swift.Int) -> (@unowned ()) to @callee_owned (@in (data : [Argus.AZPedometerData], importNumber : Swift.Int)) -> (@out ()) + 56
4 Argus 0x001cb4e4 Argus.StepsImportQueue.addToQueue (Argus.StepsImportQueue)(Argus.AZPedometerData) -> () + 1688
5 Argus 0x001ddcb8 Argus.StepsImportQueue.(importForMinute (Argus.StepsImportQueue) -> (ObjectiveC.NSDate, endDate : ObjectiveC.NSDate, minute : Swift.Int) -> ()).(closure #1) + 1240
6 Argus 0x001d89b0 partial apply forwarder for reabstraction thunk helper from @callee_owned (@owned Argus.AZPedometerData!, @owned ObjectiveC.NSError!) -> (@unowned ()) to @callee_owned (@in (Argus.AZPedometerData!, ObjectiveC.NSError!)) -> (@out ()) with unmangled suffix "187" + 56
7 Argus 0x001dd2b0 Argus.AZStepCounter.(queryStepCountStartingFrom8 (Argus.AZStepCounter) -> (ObjectiveC.NSDate!, to : ObjectiveC.NSDate!, toQueue : ObjectiveC.NSOperationQueue!, withHandler : (Argus.AZPedometerData!, ObjectiveC.NSError!) -> ()!) -> ()).(closure #1).(closure #1).(closure #1) + 756
8 Argus 0x001da144 partial apply forwarder for Argus.AZStepCounter.(queryStepCountStartingFrom8 (Argus.AZStepCounter) -> (ObjectiveC.NSDate!, to : ObjectiveC.NSDate!, toQueue : ObjectiveC.NSOperationQueue!, withHandler : (Argus.AZPedometerData!, ObjectiveC.NSError!) -> ()!) -> ()).(closure #1).(closure #1).(closure #1) + 140
9 Foundation 0x2a0c02b1 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 9
10 Foundation 0x2a02b34d -[NSBlockOperation main] + 149
11 Foundation 0x2a01db07 -[__NSOperationInternal _start:] + 775
12 Foundation 0x2a0c2c1b __NSOQSchedule_f + 187
13 libdispatch.dylib 0x3710c7a7 _dispatch_client_callout + 23
14 libdispatch.dylib 0x3710ffa3 _dispatch_main_queue_callback_4CF + 719
15 CoreFoundation 0x2938b3b1 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
16 CoreFoundation 0x29389ab1 __CFRunLoopRun + 1513
17 CoreFoundation 0x292d73c1 CFRunLoopRunSpecific + 477
18 CoreFoundation 0x292d71d3 CFRunLoopRunInMode + 107
19 GraphicsServices 0x306950a9 GSEventRunModal + 137
20 UIKit 0x2c8e6fa1 UIApplicationMain + 1441
21 Argus 0x0024a3a7 main + 59
22 libdyld.dylib 0x3712caaf start + 3
答案 0 :(得分：2)
通常，Apple建议找到问题的主题。你有明确的定义：
Crashed Thread: 0
然后他们建议阅读最上面的语句（最接近0），上面有你的应用程序名称（至少部分语句）。如果我没有弄错的话，这应该是问题方法：
Argus.AZPedometerStepsSync.updateStatsToCheckIn