（null）libc ++ abi.dylib：terminate调用抛出异常 [英] (null) libc++abi.dylib: terminate called throwing an exception

问题描述

我使用Xcode 4.5PR和iOS 6beta 2。

I use Xcode 4.5PR and iOS 6beta 2.

我没有更改任何代码，我的应用程序抛出标题中提到的异常。

I didn't change any codes, my application throw an exception mentioned in the Title.

我使用Debug Window这个函数引起了这个异常，但它显示了

I used Debug Window which function caused this exception, but it showing

0x38dda960:  push   {r4, r5, r6, r7, lr}

如何找到问题？我该如何解决？

How can I find a problem? How can I fix it?

推荐答案

如果你没有改变任何东西，这可能只是与iOS 6测试版有关目前的情况。

If you didn't change anything, this could just simply be related to the iOS 6 beta as it currently stands.

1）它可能是您选择为以下代码构建相同代码的模拟器：

如果您尚未更改任何源代码，检查以确保您的方案仍然指向它上次处理的相同模拟器。 （例如，尝试呈现模态视图控制器（ presentModalViewController：），但忘记有条件地使用iPad的弹出窗口，可能会导致这种情况。）

If you haven't changed any source code, check to make sure your scheme is still pointing to the same simulator that it last worked on. (For example, trying to present a modal view controller (presentModalViewController:), but forgetting to conditionally use a popover for iPad, could cause this.)

2）如果堆栈跟踪和控制台无用：

有时，堆栈中的唯一内容是 main 和 UIApplicationMain ，这使得很难追踪自己来源的错误。这可能表示您正在调用或导致调用的本机框架方法中出现问题。

Sometimes, the only things in the stack are main and UIApplicationMain, which makes it difficult to trace what went wrong in your own source. This is likely a sign that something is failing in a native framework method that you're calling or causing to be called.

如果没有列出任何方法或特定对象控制台和堆栈跟踪不指向您自己的类中的任何方法，尝试尽可能地将执行范围缩小到抛出异常的位置。在黑暗中挑选断点时，我倾向于使用二元搜索方法，选择一个支点并在执行顺序中上下移动并根据需要选择一个新的中途点。

If no method or specific object is listed in the console and the stack trace does not point to any methods from your own classes, try to narrow down the execution as close as you can to the point at which the exception is thrown. When picking breakpoints in the dark, I tend to use a binary search approach, picking a pivot point and moving up and down the execution order and picking a new "halfway" point as necessary.

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