Unity项目在Xcode中构建，随机崩溃，我不知道为什么......请帮助

Question

Xcode 版本为 6.1 Unity 版本为 4.54f1 和 NGUI 2.6.1

我确信在 UnityEngine 中运行时控制台上没有错误记录，但在 iPhone 上运行时，它大约每小时崩溃一次。 我尝试使用 dSYM 来追踪错误，但我看到的只是内存地址，我不明白。

1. Unity 或 Xcode 中是否有任何选项可以帮助我避免此类崩溃？

   这是我的设置：

   脚本调用优化为"Slow and Safe"
   优化级别为"None[-O0]"

2. 什么样的错误会导致这样的崩溃，内存错误？

3. 在我的代码中跟踪错误行的方法。

   线程 0 崩溃：

   0   libsystem_kernel.dylib          0x37f551fc __pthread_kill + 8
   1   libsystem_pthread.dylib         0x37fbea2e pthread_kill + 54
   2   libsystem_c.dylib               0x37f05ff8 abort + 72
   3   pp                              0x01e2489c mono_handle_native_sigsegv + 312
   4   pp                              0x01e1420c mono_sigsegv_signal_handler + 256
   5   libsystem_platform.dylib        0x37fb9060 _sigtramp + 40
   6   pp                              0x01f10e34 g_logv + 160
   7   pp                              0x01f10e5c g_log + 28
   8   pp                              0x01e18d64 get_numerous_trampoline + 368
   9   pp                              0x01e1c874 mono_aot_create_specific_trampoline + 468
   10  pp                              0x01e26aa4 mono_create_specific_trampoline + 72
   11  pp                              0x01e26f5c mono_create_jit_trampoline_in_domain + 328
   12  pp                              0x01e27088 mono_create_jit_trampoline + 20
   13  pp                              0x01e14604 mono_resolve_patch_target + 504
   14  pp                              0x01e1ddf0 mono_aot_plt_resolve + 452
   15  pp                              0x01e26040 mono_aot_plt_trampoline + 32
   16  pp                              0x016cbae8 generic_trampoline_6 + 120
   17  pp                              0x0162295c m_wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr (mscorlib.dll.s:354297)
   18  pp                              0x01e13ab0 mono_jit_runtime_invoke + 2152
   19  pp                              0x01eb5d60 mono_runtime_invoke + 132
   20  pp                              0x01a01148 MonoBehaviour::InvokeMethodOrCoroutineChecked(ScriptingMethod*, MonoObject*, MonoException**) (MonoBehaviour.cpp:933)
   21  pp                              0x01a01284 MonoBehaviour::InvokeMethodOrCoroutineChecked(ScriptingMethod*, MonoObject*) (MonoBehaviour.cpp:973)
   22  pp                              0x01a10a34 Scripting::SendScriptingMessage(Unity::GameObject&, char const*, MonoObject*) (Scripting.cpp:147)
   23  pp                              0x01a10b18 Scripting::SendScriptingMessage(Unity::GameObject&, std::string const&, MonoObject*, int) (Scripting.cpp:186)
   24  pp                              0x01c26c6c GameObject_CUSTOM_SendMessage(ReadOnlyScriptingObjectOfType<Unity::GameObject>, ICallString, MonoObject*, int) (UnityEngineGameObject.cpp:343)
   25  pp                              0x01168a54 m_wrapper_managed_to_native_UnityEngine_GameObject_SendMessage_string_object_UnityEngine_SendMessageOptions (UnityEngine.dll.s:51208)
   26  pp                              0x002503f4 m_UIEventListener_OnClick (Assembly-CSharp.dll.s:20588)
   27  pp                              0x0162295c m_wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr (mscorlib.dll.s:354297)
   28  pp                              0x01e13ab0 mono_jit_runtime_invoke + 2152
   29  pp                              0x01eb5d60 mono_runtime_invoke + 132
   30  pp                              0x01a01148 MonoBehaviour::InvokeMethodOrCoroutineChecked(ScriptingMethod*, MonoObject*, MonoException**) (MonoBehaviour.cpp:933)
   31  pp                              0x01a01284 MonoBehaviour::InvokeMethodOrCoroutineChecked(ScriptingMethod*, MonoObject*) (MonoBehaviour.cpp:973)
   32  pp                              0x01a10a34 Scripting::SendScriptingMessage(Unity::GameObject&, char const*, MonoObject*) 
   (Scripting.cpp:147)
   33  pp                              0x01a10b18 Scripting::SendScriptingMessage(Unity::GameObject&, std::string const&, MonoObject*, int) (Scripting.cpp:186)
   34  pp                              0x01c26c6c GameObject_CUSTOM_SendMessage(ReadOnlyScriptingObjectOfType<Unity::GameObject>, ICallString, MonoObject*, int) (UnityEngineGameObject.cpp:343)
   35  pp                              0x01168a54 m_wrapper_managed_to_native_UnityEngine_GameObject_SendMessage_string_object_UnityEngine_SendMessageOptions (UnityEngine.dll.s:51208)
   36  pp                              0x0025e990 m_UICamera_ProcessTouch_bool_bool (Assembly-CSharp.dll.s:26704)
   37  pp                              0x0025d75c m_UICamera_ProcessTouches (Assembly-CSharp.dll.s:26229)
   38  pp                              0x0025c594 m_UICamera_Update (Assembly-CSharp.dll.s:25808)
   39  pp                              0x0162295c m_wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr (mscorlib.dll.s:354297)
   40  pp                              0x01e13ab0 mono_jit_runtime_invoke + 2152
   41  pp                              0x01eb5d60 mono_runtime_invoke + 132
   42  pp                              0x01961f8c scripting_method_invoke(ScriptingMethod*, MonoObject*, ScriptingArguments&, MonoException**) (ScriptingBackendApi_Mono.cpp:199)
   43  pp                              0x01a0cb30 ScriptingInvocationNoArgs::Invoke(MonoException**) (ScriptingInvocationNoArgs.cpp:95)
   44  pp                              0x01a0caec ScriptingInvocationNoArgs::Invoke() (ScriptingInvocationNoArgs.cpp:79)
   45  pp                              0x01a003a8 MonoBehaviour::CallUpdateMethod(int) (MonoBehaviour.cpp:612)
   46  pp                              0x01a003c0 MonoBehaviour::Update() (MonoBehaviour.cpp:617)
   47  pp                              0x0194b884 void BaseBehaviourManager::CommonUpdate<BehaviourManager>() (Behaviour.cpp:156)
   48  pp                              0x0194bc50 BehaviourManager::Update() (Behaviour.cpp:172)
   49  pp                              0x019d2be4 PlayerLoop(bool, bool, IHookEvent*) (Player.cpp:1895)
   50  pp                              0x017cda74 UnityPlayerLoop (LibEntryPoint.mm:239)
   51  pp                              0x017925bc -[UnityAppController(Rendering) repaint] (UnityAppController+Rendering.mm:55)
   52  pp                              0x017923b0 -[UnityAppController(Rendering) repaintDisplayLink] (UnityAppController+Rendering.mm:34)
   53  QuartzCore                      0x2facb9ca CA::Display::DisplayLinkItem::dispatch() + 94
   54  QuartzCore                      0x2facb774 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 340
   55  IOMobileFramebuffer             0x326c176a IOMobileFramebufferVsyncNotifyFunc + 102
   56  IOKit                           0x2e363a72 IODispatchCalloutFromCFMessage + 246
   57  CoreFoundation                  0x2d641e1e __CFMachPortPerform + 134
   58  CoreFoundation                  0x2d64c9dc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
   59  CoreFoundation                  0x2d64c976 __CFRunLoopDoSource1 + 342
   60  CoreFoundation                  0x2d64b14a __CFRunLoopRun + 1394
   61  CoreFoundation                  0x2d5b5c22 CFRunLoopRunSpecific + 518
   62  CoreFoundation                  0x2d5b5a06 CFRunLoopRunInMode + 102
   63  GraphicsServices                0x322a527e GSEventRunModal + 134
   64  UIKit                           0x2fe59044 UIApplicationMain + 1132
   65  pp                              0x000cde78 main (main.mm:28)
   66  pp                              0x000cdd54 start + 36
   

Answer 1

跟踪的第 3 行，mono_handle_native_sigsegv 表示您正在尝试访问 NULL 对象。

如果您在编辑器中没有看到这一点，但在设备上看到了，请记住，不同设备上的时间会有所不同。可能由于时间差异，导致问题的行在对象在编辑器中无效之前被调用，但在设备上之后。

看起来它发生在您正在响应 OnClick 消息的某个地方。