AppCenter iOS崩溃报告-无法了解导致崩溃的原因

Question

我在appcenter上收到了未标记的崩溃报告。

我上传了dsym文件以获取堆栈跟踪。有堆栈跟踪信息，但不知道是什么原因导致崩溃的。

它似乎与iOS UI有关。

这是堆栈跟踪：

    MAIN THREAD - CRASHED
    libobjc.A.dylib
    objc_msgSend
    QuartzCore
    CA::Layer::mark_visible(CA::Transaction*, bool)
    QuartzCore
    CA::Layer::mark_visible(CA::Transaction*, bool)
    QuartzCore
    CA::Layer::mark_visible(CA::Transaction*, bool)
    QuartzCore
    CA::Layer::mark_visible(CA::Transaction*, bool)
    QuartzCore
    CA::Layer::mark_visible(CA::Transaction*, bool)
    QuartzCore
    CA::Layer::update_added_sublayer(CA::Transaction*, CA::Layer*, unsigned int)
    QuartzCore
    CA::Layer::insert_sublayer(CA::Transaction*, CALayer*, unsigned long)
    QuartzCore
    -[CALayer addSublayer:]
    UIKitCore
    -[UIView(Internal) _addSubview:positioned:relativeTo:]
    UIKitCore
    -[UIViewControllerBuiltinTransitionViewAnimator animateTransition:]
    UIKitCore
    +[UIView(Animation) performWithoutAnimation:]
    UIKitCore
    -[UIViewControllerBuiltinTransitionViewAnimator animateTransition:]
    UIKitCore
    +[UIView(UIViewAnimationWithBlocks) _setupAnimationWithDuration:delay:view:options:factory:animations:start:animationStateGenerator:completion:]
    UIKitCore
    +[UIView(UIViewAnimationWithBlocks) animateWithDuration:delay:options:animations:completion:]
    UIKitCore
    -[UIViewControllerBuiltinTransitionViewAnimator animateTransition:]
    UIKitCore
    -[UIPresentationController runTransitionForCurrentState]
    UIKitCore
    _runAfterCACommitDeferredBlocks
    UIKitCore
    _cleanUpAfterCAFlushAndRunDeferredBlocks
    UIKitCore
    _afterCACommitHandler
    CoreFoundation
    __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
    CoreFoundation
    __CFRunLoopDoObservers
    CoreFoundation
    __CFRunLoopRun
    CoreFoundation
    CFRunLoopRunSpecific
    GraphicsServices
    GSEventRunModal
    UIKitCore
    UIApplicationMain
    SENSE.iOS
    wrapper_managed_to_native_UIKit_UIApplication_UIApplicationMain_int_string___intptr_intptr
    SENSE.iOS
    UIApplication.cs:86
    SENSE.iOS
    UIApplication.cs:65
    SENSE.iOS
    Main.cs:9
    SENSE.iOS
    wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr
    SENSE.iOS
    mono_jit_runtime_invoke mini-runtime.c:3119
    SENSE.iOS
    mono_runtime_invoke_checked object.c:2960
    SENSE.iOS
    mono_runtime_exec_main_checked object.c:0
    SENSE.iOS
    mono_jit_exec driver.g.c:1236
    SENSE.iOS
    xamarin_main monotouch-main.m:484
    SENSE.iOS
    main main.m:203
    libdyld.dylib
    start