How to debug iPhone app errors that occur before the first line

StackOverflow https://stackoverflow.com/questions/2038139

  •  19-09-2019
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Question

I have a fairly simple app. It compiles fine. Unfortunately, when I Build and Go, it fails before even the first line of code, thus making it impossible for me to even debug it.

Where do I start? I do have the stack track though.alt text

Was it helpful?

Solution

From the stack trace, it seems your Outlet connections seem messed up in your main XIB file - you could start looking there.

Other than that, you won't be able to debug much, because there's no source code for the iPhone built-in mechanisms, which seem to be failing here (most probably because of something you did in the interface designer/XIBs).

OTHER TIPS

Set a breakpoint at objc_exception_throw, then restart the application. The breakpoints should be kept after the restart, allowing you to see what's wrong.

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