当在滚动的某个点触发动作时，我随机发生以下错误，但经常发生以下错误：
CALayerInvalidGeometry Trace: <redacted> <redacted> <redacted> <redacted> <redacted> <redacted> <redacted> -[Show scrollViewWillEndDragging:withVeloci...
而且，更准确地说：
Incident Identifier: 4FE03135-D442-4CEA-B230-8322647262EE
CrashReporter Key: 6f005b28e796b18f3ab2687bb364b2be1eb137cd
Hardware Model: iPhone5,2
Process: etapes [2916]
Path: /var/mobile/Applications/BF2F1016-8C00-40A3-BB75-0933F53741F0/******.app/****
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000064
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 UIKit 0x33df7b06 -[UIView(CALayerDelegate) actionForLayer:forKey:] + 138
1 QuartzCore 0x33ba7786 -[CALayer actionForKey:] + 70
2 QuartzCore 0x33ba7732 _ZL12actionForKeyP7CALayerPN2CA11TransactionEP8NSString + 54
3 QuartzCore 0x33ba7626 CA::Layer::begin_change(CA::Transaction*, unsigned int, objc_object*&) + 126
4 QuartzCore 0x33ba2322 CA::Layer::setter(unsigned int, _CAValueType, void const*) + 178
5 QuartzCore 0x33bce782 -[CALayer setBackgroundColor:] + 30
6 UIKit 0x33e0ef50 -[UIView(Internal) _setBackgroundCGColor:withSystemColorName:] + 1016
7 etapes 0x000fc8d2 0xdd000 + 129234
8 etapes 0x000f8c6a 0xdd000 + 113770
9 CoreFoundation 0x31fe9ad0 __invoking___ + 64
10 CoreFoundation 0x31f4128a -[NSInvocation invoke] + 286
11 Foundation 0x328eaf60 -[NSInvocationOperation main] + 108
12 Foundation 0x32874a84 -[__NSOperationInternal start] + 836
13 Foundation 0x328ecfe2 __block_global_6 + 98
14 libdispatch.dylib 0x3a0f1790 _dispatch_call_block_and_release + 8
15 libdispatch.dylib 0x3a0f15d8 _dispatch_client_callout + 20
16 libdispatch.dylib 0x3a0f4e40 _dispatch_main_queue_callback_4CF + 224
17 CoreFoundation 0x31fba1ac __CFRunLoopRun + 1284
18 CoreFoundation 0x31f2d238 CFRunLoopRunSpecific + 352
19 CoreFoundation 0x31f2d0c4 CFRunLoopRunInMode + 100
20 GraphicsServices 0x35b0b336 GSEventRunModal + 70
21 UIKit 0x33e492b4 UIApplicationMain + 1116
22 etapes 0x000df15e 0xdd000 + 8542
23 etapes 0x000df114 0xdd000 + 8468
我很难理解这个错误，因此要纠正它。感谢任何有经验的 ios 开发人员对此的反馈