ios – 如何在Xcode堆栈跟踪中查找NSInternalInconsistencyException的来源

我正在使用Objective-C中的iPhone应用程序(使用 Xcode 6.1.1和ParsE),我刚刚得到了这个神秘的NSInternalInconsistencyException：

捕获“NSInternalInconsistencyException”,原因是“尝试使用指向未保存的新对象的指针保存对象.”：

所以我对Stack Overflow社区的问题是：

有人如何读取此堆栈跟踪以查找问题的实际来源？我没有在此堆栈跟踪中的任何位置看到任何可识别的文件名,方法调用或行号.

或者,如果不是简单地读取堆栈跟踪并且涉及其他技术,那么开发人员应该采取哪些适当的下一步来追踪此类错误的来源？

这是输出到我的控制台的完整堆栈跟踪：

2015-07-18 02:01:17.596 testapp[1276:60b] [Error]: Caught "NSInternalInconsistencyException" with reason "Tried to save an object with a pointer to a new,unsaved object.":
(
    0   CoreFoundation                      0x2f547f9b  + 154
    1   libobjc.A.dylib                     0x39c94ccf objc_exception_throw + 38
    2   CoreFoundation                      0x2f547ec5  + 0
    3   testapp                             0x00205a29 -[PFObject(PrivatE) resolveLocalId] + 384
    4   testapp                             0x00233d6d __32-[PFRESTCommand resolveLocalIds]_block_invoke + 24
    5   testapp                             0x00233783 +[PFRESTCommand forEachLocalIdIn:doBlock:] + 642
    6   testapp                             0x00233ba7 __42+[PFRESTCommand forEachLocalIdIn:doBlock:]_block_invoke + 62
    7   CoreFoundation                      0x2f484043  + 98
    8   CoreFoundation                      0x2f483f67  + 162
    9   testapp                             0x0023367f +[PFRESTCommand forEachLocalIdIn:doBlock:] + 382
    10  testapp                             0x00233ba7 __42+[PFRESTCommand forEachLocalIdIn:doBlock:]_block_invoke + 62
    11  CoreFoundation                      0x2f484043  + 98
    12  CoreFoundation                      0x2f483f67  + 162
    13  testapp                             0x0023367f +[PFRESTCommand forEachLocalIdIn:doBlock:] + 382
    14  testapp                             0x0023373f +[PFRESTCommand forEachLocalIdIn:doBlock:] + 574
    15  testapp                             0x00233ba7 __42+[PFRESTCommand forEachLocalIdIn:doBlock:]_block_invoke + 62
    16  CoreFoundation                      0x2f484043  + 98
    17  CoreFoundation                      0x2f483f67  + 162
    18  testapp                             0x0023367f +[PFRESTCommand forEachLocalIdIn:doBlock:] + 382
    19  testapp                             0x00233ca3 -[PFRESTCommand forEachLocalId:] + 162
    20  testapp                             0x00233d3f -[PFRESTCommand resolveLocalIds] + 34
    21  testapp                             0x0023ee2f -[PFRESTCommandRunner _runCommandAsync:withCancellationToken:] + 110
    22  testapp                             0x0023e8c7 -[PFRESTCommandRunner runCommandAsync:withOptions:cancellationToken:] + 174
    23  testapp                             0x0023e7d7 -[PFRESTCommandRunner runCommandInBACkground:inOperation:] + 42
    24  testapp                             0x00203667 __65+[PFObject(PrivatE) _deepSaveAsync:withCurrentUser:sessionToken:]_block_invoke_3 + 766
    25  testapp                             0x002854b3 __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke_2 + 214
    26  libdispatch.dylib                   0x3a17c833  + 10
    27  libdispatch.dylib                   0x3a183ad7  + 222
    28  libdispatch.dylib                   0x3a183d29  + 56
    29  libsystem_pthread.dylib             0x3a2bebd3 _pthread_wqthread + 298
    30  libsystem_pthread.dylib             0x3a2bea98 start_wqthread + 8
).

我感谢您提供给我的任何帮助和见解.

[PFObject(PrivatE) _deepSaveAsync:withCurrentUser:sessionToken:]

// Prevent race condition for unsaved user
    // Courtesy of: http://samwize.com/2014/07/15/pitfall-with-using-anonymous-user-in-parse/
    if ([PFUser currentUser].objectId == nil) {
        [[PFUser currentUser] saveInBACkgroundWithBlock:^(BOOL succeeded,NSError *error) {
            //do stuff later
        }];
    } else {
        //do stuff Now
    }