"The Debugger has exited due to signal 5 (SIGTRAP)", only when NOT debugging

I am developing with Xcode 3.2.5 for the iPhone. 开发者_运维百科When testing my program in the simulator, I get this error immediately when my program starts and crashes

The Debugger has exited due to signal 5 (SIGTRAP)

But if I activate debugging, even if there are not breakpoints, the program runs perfectly.

Do you know where to start looking at?

Thanks

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Try restarting Xcode and click "Clean all targets", that might help.

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This answer suggests you can look at the simulator's crash logs to find a stack trace. This might help narrow down the search:

Crash logs generated by iPhone Simulator?

Does the program run OK on the device itself?

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I just had the same problem, clean build didn't help. I eventually reset the simulator and removed all the files in the .xcodeproj folders that weren't project.pbxproj (ie: all the jim.* files etc).

I should have done one at a time because now I don't know which fixed the problem, but now it works.