我收到了崩溃报告，该报告是有关将MKMapItem保存到数据存储中时无法识别的选择器发送到实例的。根据MKMapItem文档（MKMapItem Document），它符合NSSecureCoding，这意味着将其保存到NSManagedObject实例中应该没有问题。在ios 11版本上看起来还不错，因为我没有从使用该版本的设备收到崩溃报告。另外，我还将介绍可能在手机上保存MKMapItem的功能。上下文确实将NKMapItem保存到数据存储中，并且该功能正常工作。由于我的手机运行的是IOS 11，因此我认为这可能与版本系统有关？
如果误解了，请纠正我。
这是崩溃报告。
OS Version: iPhone OS 10.3.3 (14G60)
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x181646fe0 __exceptionPreprocess + 124 (NSException.m:165)
1 libobjc.A.dylib 0x1800a8538 objc_exception_throw + 56 (objc-exception.mm:521)
2 CoreFoundation 0x18164def4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 140 (NSObject.m:328)
3 CoreFoundation 0x18164af54 ___forwarding___ + 916 (NSForwarding.m:3126)
4 CoreFoundation 0x181546d4c _CF_forwarding_prep_0 + 92
5 Foundation 0x18209afd4 _encodeObject + 1176 (NSKeyedArchiver.m:873)
6 Foundation 0x1820a1e9c +[NSKeyedArchiver archivedDataWithRootObject:] + 168 (NSKeyedArchiver.m:421)
7 CoreData 0x18391ae28 -[NSSQLiteConnection execute] + 1952 (NSSQLiteConnection.m:4165)
8 CoreData 0x1839520e4 -[NSSQLiteConnection insertRow:] + 456 (NSSQLiteConnection.m:2966)
9 CoreData 0x183ae3df8 _writeChangesForSaveRequest + 824 (NSSQLCore_Functions.m:1561)
10 CoreData 0x183ae5584 _executeSaveChangesRequest + 388 (NSSQLCore_Functions.m:1622)
11 CoreData 0x183adb5f0 -[NSSQLSaveChangesRequestContext executeRequestUsingConnection:] + 44 (NSSQLSaveChangesRequestContext.m:103)
12 CoreData 0x1839f30c4 __52-[NSSQLDefaultConnectionManager handleStoreRequest:]_block_invoke + 256 (NSSQLConnectionManager.m:305)
13 libdispatch.dylib 0x1804fe9a0 _dispatch_client_callout + 16 (object.m:473)
14 libdispatch.dylib 0x18050bee0 _dispatch_barrier_sync_f_invoke + 84 (queue.c:3446)
15 CoreData 0x1839f2f64 -[NSSQLDefaultConnectionManager handleStoreRequest:] + 208 (NSSQLConnectionManager.m:290)
16 CoreData 0x183ab5824 -[NSSQLCoreDispatchManager routeStoreRequest:] + 272 (NSSQLCoreDispatchManager.m:56)
17 CoreData 0x183a2075c -[NSSQLCore dispatchRequest:withRetries:] + 236 (NSSQLCore.m:2726)
18 CoreData 0x183a1c578 -[NSSQLCore processSaveChanges:forContext:] + 200 (NSSQLCore.m:1569)
19 CoreData 0x183920f10 -[NSSQLCore executeRequest:withContext:error:] + 724 (NSSQLCore.m:1923)
20 CoreData 0x1839ff84c __65-[NSPersistentStoreCoordinator executeRequest:withContext:error:]_block_invoke + 3492 (NSPersistentStoreCoordinator.m:2820)
21 CoreData 0x1839f80f0 -[NSPersistentStoreCoordinator _routeHeavyweightBlock:] + 276 (NSPersistentStoreCoordinator.m:586)
22 CoreData 0x183920adc -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 408 (NSPersistentStoreCoordinator.m:2706)
23 CoreData 0x18394197c -[NSManagedObjectContext save:] + 2548 (NSManagedObjectContext.m:1419)
24 myappName 0x10009421c coreDataManager.saveContext() + 92 (coreDataManager.swift:514)
25 myappName 0x1000b5970 closure #1 in eventUpdateManager.observeValue(forKeyPath:of:change:context:) + 64 (eventUpdateManager.swift:138)
26 myappName 0x100124924 thunk for @escaping @callee_guaranteed () -> () + 36 (customAnimationController.swift:0)
27 libdispatch.dylib 0x1804fe9e0 _dispatch_call_block_and_release + 24 (init.c:963)
28 libdispatch.dylib 0x1804fe9a0 _dispatch_client_callout + 16 (object.m:473)
29 libdispatch.dylib 0x1805035e8 _dispatch_main_queue_callback_4CF + 996 (inline_internal.h:2431)
30 CoreFoundation 0x1815f50c8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 (CFRunLoop.c:1793)
31 CoreFoundation 0x1815f2ce4 __CFRunLoopRun + 1572 (CFRunLoop.c:3004)
32 CoreFoundation 0x181522da4 CFRunLoopRunSpecific + 424 (CFRunLoop.c:3113)
33 GraphicsServices 0x182f8d074 GSEventRunModal + 100 (GSEvent.c:2245)
34 UIKit 0x1877ddc9c UIApplicationMain + 208 (UIApplication.m:4089)
35 myappName 0x10005da1c main + 56 (receiptCollectionViewCell.swift:18)
36 libdyld.dylib 0x18053159c start + 4
Thread 0 name:
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x0000000180641014 __pthread_kill + 8
1 libsystem_pthread.dylib 0x000000018070b264 pthread_kill + 112 (pthread.c:1366)
2 libsystem_c.dylib 0x00000001805b59c4 abort + 140 (abort.c:91)
3 myappName 0x0000000100170ac8 uncaught_exception_handler + 72
4 CoreFoundation 0x0000000181647354 __handleUncaughtException + 628 (NSException.m:218)
5 libobjc.A.dylib 0x00000001800a8814 _objc_terminate() + 112 (objc-exception.mm:656)
6 myappName 0x0000000100155408 MSCrashesUncaughtCXXTerminateHandler() + 732 (MSCrashesCXXExceptionHandler.mm:171)
7 libc++abi.dylib 0x00000001800975d4 std::__terminate(void (*)()) + 16 (cxa_handlers.cpp:68)
8 libc++abi.dylib 0x00000001800971a8 __cxa_rethrow + 144 (cxa_exception.cpp:584)
9 libobjc.A.dylib 0x00000001800a86f8 objc_exception_rethrow + 44 (objc-exception.mm:559)
10 CoreData 0x0000000183941cb0 -[NSManagedObjectContext save:] + 3368 (NSManagedObjectContext.m:1548)
11 myappName 0x000000010009421c coreDataManager.saveContext() + 92 (coreDataManager.swift:514)
12 myappName 0x00000001000b5970 closure #1 in eventUpdateManager.observeValue(forKeyPath:of:change:context:) + 64 (eventUpdateManager.swift:138)
13 myappName 0x0000000100124924 thunk for @escaping @callee_guaranteed () -> () + 36 (customAnimationController.swift:0)
14 libdispatch.dylib 0x00000001804fe9e0 _dispatch_call_block_and_release + 24 (init.c:963)
15 libdispatch.dylib 0x00000001804fe9a0 _dispatch_client_callout + 16 (object.m:473)
16 libdispatch.dylib 0x00000001805035e8 _dispatch_main_queue_callback_4CF + 996 (inline_internal.h:2431)
17 CoreFoundation 0x00000001815f50c8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 (CFRunLoop.c:1793)
18 CoreFoundation 0x00000001815f2ce4 __CFRunLoopRun + 1572 (CFRunLoop.c:3004)
19 CoreFoundation 0x0000000181522da4 CFRunLoopRunSpecific + 424 (CFRunLoop.c:3113)
20 GraphicsServices 0x0000000182f8d074 GSEventRunModal + 100 (GSEvent.c:2245)
21 UIKit 0x00000001877ddc9c UIApplicationMain + 208 (UIApplication.m:4089)
22 myappName 0x000000010005da1c main + 56 (receiptCollectionViewCell.swift:18)
23 libdyld.dylib 0x000000018053159c start + 4