使用ios 4.3.5安装在iphone上时，使用Xcode 4.2 ios 5.0构建的应用程序崩溃

我有一个不会在ios 4.x上构建的应用程序

I have an app that will not build anymore on ios 4.x

上周它工作正常，现在我可以确认2个年龄较大的ios'无法在Test Flight上启动应用程序。

Last week it worked fine, and now I can confirm 2 people with older ios' are unable to launch the app on Test Flight.

1人（ios 4.3.x）无法在Xcode中构建应用程序，调试器输出如下

1 person (ios 4.3.x) is unable to build the app anymore in Xcode and the debugger output is as follows

warning: Unable to read symbols from "dyld" (prefix __dyld_) (not yet
mapped into memory).
warning: Unable to read symbols for
/Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3
(8F190)/Symbols/System/Library/Frameworks/UIKit.framework/UIKit (file
not found).
warning: Unable to read symbols from "UIKit" (not yet mapped into memory).
warning: Unable to read symbols from "Foundation" (not yet mapped into memory).
warning: Unable to read symbols for
/Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3
(8F190)/Symbols/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
(file not found).
warning: Unable to read symbols from "CoreGraphics" (not yet mapped
into memory).
warning: Unable to read symbols from "libSystem.B.dylib" (not yet
mapped into memory).
warning: Unable to read symbols from "libgcc_s.1.dylib" (not yet
mapped into memory).

我无法想象这一点。我一直在开发最新的SDK选项，目标设置为4.0。

I am at a loss to figure this one out. I have been developing with the Latest SDK option and target set to 4.0.

我做的唯一改变（我能想到的）是为所有异常添加一个断点。
我正在删除它，看看是否有所作为，但暂时不会得到反馈。我在这里问的是，如果不是解决方案并且看看是否有人可以减轻我的压力

The only change I made (that I can think of) was adding a breakpoint for all exceptions. I am removing that and seeing if that makes a difference, but won't get feedback for a while. I am asking here in case that is not the solution and to see if someone can ease my stress

编辑
断点没有效果。我认为它不会影响试飞的运行，但我真的希望它能成为解决方案。我将它留在这里，因为它是我如何让调试器在Xcode 4.2中的main.m之前停止，并希望其他人能够设置断点，如果他们不知道如何。

EDIT The breakpoint had no effect. I didn't think it would affect running with test-flight, but I really hoped it would be the solution. I am leaving it up here, because it is how I get the debugger to stop before main.m in Xcode 4.2 and want others to be able to set the breakpoint if they didn't know how.