我们最近开发了一款适用于Android和iOS的Xamarin表单应用。 Android版本位于Google Play商店，正在按预期运行。 iOS版本可以在我们所有的设备和模拟器上运行，但是当苹果在使用iOS 9.3.3的应用程序审核过程中对其进行测试时会崩溃。我们已经对崩溃报告进行了象征，但对可能导致崩溃的原因感到不知所措。
下面是符号化的崩溃报告，非常感谢人们可以提供的帮助我们追踪崩溃原因的任何帮助。
事件标识符：1D827CDB-F42D-457B-AE32-F887824E7EFE CrashReporter密钥：ed6d5c5e7f0dc0721d5e88ce52e57230f0fb842f硬件 型号：xxx进程：SwiftPOSMemberPortaliOS [1615] 路径：
/private/var/containers/Bundle/Application/DB6ED5ED-7A9A-4809-A92F-514EC1BC35C9/SwiftPOSMemberPortaliOS.app/SwiftPOSMemberPortaliOS标识符：com.swiftpos.loyalty版本：4 （6.48.4）代码类型：ARM-64（本机）父进程：
launchd [1]日期/时间：2016-07-25 17：31：45.45 -0700发布时间：
2016-07-25 17：31：43.43 -0700操作系统版本：iOS 9.3.3（13G34） 报告版本：105异常类型：EXC_BAD_ACCESS（SIGABRT）异常子类型： KERN_INVALID_ADDRESS位于0x0000000000000000由线程触发：0
已过滤的系统日志：未找到
Last Exception Backtrace：0 CoreFoundation
0x182ce2db0 0x182bb8000 + 1224112 1 libobjc.A.dylib
0x182347f80 0x182340000 + 32640 2 CoreFoundation
0x182ce2a70 0x182bb8000 + 1223280 3 SwiftPOSMemberPortaliOS
0x100f6f078 WriteZStream + 13814828 4 SwiftPOSMemberPortaliOS
0x100f5f62c WriteZStream + 13750752 5 SwiftPOSMemberPortaliOS
0x100f5f46c WriteZStream + 13750304 6 SwiftPOSMemberPortaliOS
0x100f612e8 WriteZStream + 13758108 7 SwiftPOSMemberPortaliOS
0x1004f9e84 WriteZStream + 2849336 8 SwiftPOSMemberPortaliOS
0x10016bfbc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 252664 9 SwiftPOSMemberPortaliOS 0x1001c2ae4 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 607776 10 SwiftPOSMemberPortaliOS 0x1001c766c plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long 很长*）+ 627112 11 SwiftPOSMemberPortaliOS 0x1001c7264 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 626080 12 SwiftPOSMemberPortaliOS 0x10015f214 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 200016 13 SwiftPOSMemberPortaliOS 0x10015e8fc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 197688 14 SwiftPOSMemberPortaliOS 0x100157a54 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 169360 15 SwiftPOSMemberPortaliOS 0x10052f388 WriteZStream + 3067708 16 SwiftPOSMemberPortaliOS 0x100358aac WriteZStream + 1140320 17 SwiftPOSMemberPortaliOS 0x1003574b0 WriteZStream + 1134692 18 SwiftPOSMemberPortaliOS 0x10094e3e8 WriteZStream + 7389084 19 SwiftPOSMemberPortaliOS 0x10098b944 WriteZStream + 7640312 20 SwiftPOSMemberPortaliOS 0x1004f9e84 WriteZStream + 2849336 21 SwiftPOSMemberPortaliOS 0x10016bfbc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 252664 22 SwiftPOSMemberPortaliOS 0x1001c2ae4 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 607776 23 SwiftPOSMemberPortaliOS 0x100f744cc WriteZStream + 13836416 24 SwiftPOSMemberPortaliOS 0x100f74fc8 WriteZStream + 13839228 25 Foundation 0x1836b802c 0x1835c4000 + 999468 26 CoreFoundation 0x182c9909c 0x182bb8000 + 921756 27 CoreFoundation 0x182c98b30 0x182bb8000 + 920368 28 CoreFoundation 0x182c96830 0x182bb8000 + 911408 29 CoreFoundation 0x182bc0c50 0x182bb8000 + 35920 30 GraphicsServices 0x1844a8088 0x18449c000 + 49288 31 UIKit 0x187ea2088 0x187e24000 + 516232 32 SwiftPOSMemberPortaliOS 0x1009d0b64 WriteZStream + 7923480 33 SwiftPOSMemberPortaliOS 0x10093cb3c WriteZStream + 7317232 34 SwiftPOSMemberPortaliOS 0x10093cafc WriteZStream + 7317168 35 SwiftPOSMemberPortaliOS 0x1002436c4 WriteZStream + 4728 36 SwiftPOSMemberPortaliOS 0x1004f9e84 WriteZStream + 2849336 37 SwiftPOSMemberPortaliOS 0x10016bfbc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 252664 38 SwiftPOSMemberPortaliOS 0x1001c2ae4 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 607776 39 SwiftPOSMemberPortaliOS 0x1001c6f34 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 625264 40 SwiftPOSMemberPortaliOS 0x100241ed0 xamarin_GetFolderPath + 1960 41 SwiftPOSMemberPortaliOS
0x100f90f38 WriteZStream + 13953772 42 libdyld.dylib
0x18275e8b8 0x18275c000 + 10424全局跟踪缓冲区（反向时间秒）： 6148914687.764939 CFNetwork 0x00000001832c58e0 TCP Conn 0x12e7b2840 SSL握手完成 6148914687.955328 CFNetwork 0x00000001832c57f0 TCP Conn 0x12e7b2840启动SSL协商 6148914687.955688 CFNetwork 0x0000000183367e7c TCP Conn 0x12e7b2840完成。 fd：5，错误：0 6148914687.956469 CFNetwork 0x00000001833693a8 TCP Conn 0x12e7b2840事件1.错误：0 6148914688.040974 CFNetwork 0x0000000183369480 TCP Conn 0x12e7b2840已启动 6148914688.043079 CFNetwork 0x00000001833c3e5c使用默认标识符创建默认cookie存储 6148914688.043079 CFNetwork 0x00000001833c3e28 CFHTTPCookieStorage单例故障 6148914688.043085 CFNetwork 0x0000000183415e50 NSHTTPCookieStorage单例故障
线程0名称：tid_c07调度队列：com.apple.main-thread线程 0崩溃：0 libsystem_kernel.dylib 0x000000018287c11c 0x182860000 + 114972 1 libsystem_pthread.dylib
0x0000000182948ef8 0x182944000 + 20216 2 libsystem_c.dylib
0x00000001827eddc8 0x18278c000 + 400840 3 SwiftPOSMemberPortaliOS
0x000000010011c320 0x1000b4000 + 426784 4 CoreFoundation
0x0000000182ce3138 0x182bb8000 + 1225016 5 libobjc.A.dylib
0x000000018234823c 0x182340000 + 33340 6 SwiftPOSMemberPortaliOS
0x000000010010a290 0x1000b4000 + 352912 7 libc ++ abi.dylib
0x000000018233af44 0x182320000 + 110404 8 libc ++ abi.dylib
0x000000018233a85c 0x182320000 + 108636 9 libobjc.A.dylib
0x0000000182348094 0x182340000 + 32916 10 CoreFoundation
0x0000000182ce2a70 0x182bb8000 + 1223280 11 SwiftPOSMemberPortaliOS 0x0000000100f6f078 WriteZStream + 13814828 12 SwiftPOSMemberPortaliOS 0x0000000100f5f62c WriteZStream + 13750752 13 SwiftPOSMemberPortaliOS 0x0000000100f5f46c WriteZStream + 13750304 14 SwiftPOSMemberPortaliOS
0x0000000100f612e8 WriteZStream + 13758108 15 SwiftPOSMemberPortaliOS 0x00000001004f9e84 WriteZStream + 2849336 16 SwiftPOSMemberPortaliOS 0x000000010016bfbc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 252664 17 SwiftPOSMemberPortaliOS 0x00000001001c2ae4 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 607776 18 SwiftPOSMemberPortaliOS 0x00000001001c766c plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 627112 19 SwiftPOSMemberPortaliOS 0x00000001001c7264 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 626080 20 SwiftPOSMemberPortaliOS 0x000000010015f214 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 200016 21 SwiftPOSMemberPortaliOS 0x000000010015e8fc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 197688 22 SwiftPOSMemberPortaliOS 0x0000000100157a54 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 169360 23 SwiftPOSMemberPortaliOS 0x000000010052f388 WriteZStream + 3067708 24 SwiftPOSMemberPortaliOS
0x0000000100358aac WriteZStream + 1140320 25 SwiftPOSMemberPortaliOS 0x00000001003574b0 WriteZStream + 1134692 26 SwiftPOSMemberPortaliOS 0x000000010094e3e8 WriteZStream + 7389084 27 SwiftPOSMemberPortaliOS 0x000000010098b944 WriteZStream + 7640312 28 SwiftPOSMemberPortaliOS 0x00000001004f9e84 WriteZStream + 2849336 29 SwiftPOSMemberPortaliOS 0x000000010016bfbc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 252664 30 SwiftPOSMemberPortaliOS 0x00000001001c2ae4 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 607776 31 SwiftPOSMemberPortaliOS 0x0000000100f744cc WriteZStream + 13836416 32 SwiftPOSMemberPortaliOS
0x0000000100f74fc8 WriteZStream + 13839228 33基金会 0x00000001836b802c 0x1835c4000 + 999468 34 CoreFoundation
0x0000000182c9909c 0x182bb8000 + 921756 35 CoreFoundation
0x0000000182c98b30 0x182bb8000 + 920368 36 CoreFoundation
0x0000000182c96830 0x182bb8000 + 911408 37 CoreFoundation
0x0000000182bc0c50 0x182bb8000 + 35920 38 GraphicsServices
0x00000001844a8088 0x18449c000 + 49288 39 UIKit
0x0000000187ea2088 0x187e24000 + 516232 40 SwiftPOSMemberPortaliOS
0x00000001009d0b64 WriteZStream + 7923480 41 SwiftPOSMemberPortaliOS 0x000000010093cb3c WriteZStream + 7317232 42 SwiftPOSMemberPortaliOS 0x000000010093cafc WriteZStream + 7317168 43 SwiftPOSMemberPortaliOS 0x00000001002436c4 WriteZStream + 4728 44 SwiftPOSMemberPortaliOS
0x00000001004f9e84 WriteZStream + 2849336 45 SwiftPOSMemberPortaliOS 0x000000010016bfbc plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 252664 46 SwiftPOSMemberPortaliOS 0x00000001001c2ae4 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 607776 47 SwiftPOSMemberPortaliOS 0x00000001001c6f34 plcrash :: BIT :: async :: dwarf_cfa_state_iterator :: next（unsigned int *， plcrash :: BIT :: async :: plcrash_dwarf_cfa_reg_rule_t *，unsigned long long *）+ 625264 48 SwiftPOSMemberPortaliOS 0x0000000100241ed0 xamarin_GetFolderPath + 1960 49 SwiftPOSMemberPortaliOS
0x0000000100f90f38 WriteZStream + 13953772 50 libdyld.dylib
0x000000018275e8b8 0x18275c000 + 10424
答案 0 :(得分：1)
谢谢所有回答的人。我们发现了这个问题。
我们的api会话密钥就是问题所在。我们没有将会话密钥到期时间转换为通用时间，因此在反序列化空json响应后，它创建了一个新的数据类型实例，值为null。
答案 1 :(得分：0)
我不是iOS堆栈跟踪专家，但这些是我认为可能是有用线索的部分：
可能值得向Apple询问他们在错误发生之前执行了哪些操作。可能是他们正在测试您尚未测试过的代码路径。另外，iOS 9.3.3只出了几天，你确定已经测试了这个版本吗？