我在Swift中创建了一个自定义键盘，并使其在我的键盘目标内故意崩溃。但我在崩溃报告中看不到任何调试符号。我在Xcode 6.1.1或6.2 Beta 3中将所有“复制期间的条带调试符号”设置为NO。这是崩溃报告：
Incident Identifier: 59026289-7569-41BB-BFDC-E1186F854453
CrashReporter Key: 2ccc0eaebaa050c6b02f28b64d2e60e7dfe8ebe3
Hardware Model: iPhone7,1
Process: CrashIMEKeyboard [2564]
Path: /private/var/mobile/Containers/Bundle/Application/3F12CD05-15D4-4835-982B-A9104AA7B024/CrashIME.app/PlugIns/CrashIMEKeyboard.appex/CrashIMEKeyboard
Identifier: com.superime.CrashIME.CrashIMEKeyboard
Version: 1 (1.0)
Code Type: ARM-64 (Native)
Parent Process: launchd [1]
Date/Time: 2015-01-14 10:58:29.378 +0800
Launch Time: 2015-01-14 10:58:12.772 +0800
OS Version: iOS 8.1.2 (12B440)
Report Version: 105
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x00000001000a02cc
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libswiftCore.dylib 0x00000001000a02cc 0x100068000 + 230092
1 libswiftCore.dylib 0x00000001000a02c8 0x100068000 + 230088
2 CrashIMEKeyboard 0x00000001000498a4 0x100040000 + 39076
3 CrashIMEKeyboard 0x0000000100049c24 0x100040000 + 39972
4 UIKit 0x0000000187be8d30 -[UIApplication sendAction:to:from:forEvent:] + 92
5 UIKit 0x0000000187bd1e44 -[UIControl _sendActionsForEvents:withEvent:] + 608
6 UIKit 0x0000000187be86cc -[UIControl touchesEnded:withEvent:] + 588
7 UIKit 0x0000000187be8358 -[UIWindow _sendTouchesForEvent:] + 696
8 UIKit 0x0000000187be18ac -[UIWindow sendEvent:] + 680
9 UIKit 0x0000000187bb4fa4 -[UIApplication sendEvent:] + 260
10 UIKit 0x0000000187e53f54 _UIApplicationHandleEventFromQueueEvent + 14988
11 UIKit 0x0000000187bb350c _UIApplicationHandleEventQueue + 1612
12 CoreFoundation 0x00000001833ba9e8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 20
13 CoreFoundation 0x00000001833b9c8c __CFRunLoopDoSources0 + 260
14 CoreFoundation 0x00000001833b7d3c __CFRunLoopRun + 708
15 CoreFoundation 0x00000001832e50a0 CFRunLoopRunSpecific + 392
16 GraphicsServices 0x000000018c4875a0 GSEventRunModal + 164
17 UIKit 0x0000000187c1a3bc UIApplicationMain + 1484
18 libxpc.dylib 0x00000001943b4268 _xpc_objc_main + 764
19 libxpc.dylib 0x00000001943b5f50 xpc_main + 196
20 Foundation 0x00000001843bbc7c -[NSXPCListener resume] + 180
21 PlugInKit 0x000000018e39690c -[PKService run] + 596
22 PlugInKit 0x000000018e396544 +[PKService main] + 60
23 PlugInKit 0x000000018e396934 +[PKService _defaultRun:arguments:] + 20
24 libextension.dylib 0x00000001933c4d88 NSExtensionMain + 64
25 libdyld.dylib 0x00000001941cea04 start + 0