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My application has no errors, warnings or memory leaks, runs flawlessly on the simulator, but black screens on my iPhone 4 running with iOS 5. The SIGABRT's happens in main on this line:

int retVal = UIApplicationMain(argc, argv, nil, nil);

Since my code seems ok, does anyone know what kind of things in general can cause this kind of behavior?

Where else can I look for possible errors? All the references to this SIGABRT I'm getting are in assembly... 0.o

EDIT: Output from the debugger:

This GDB was configured as "--host=i386-apple-darwin --target=arm-apple-darwin".tty /dev/ttys000
sharedlibrary apply-load-rules all
target remote-mobile /tmp/.XcodeGDBRemote-4281-83
Switching to remote-macosx protocol
mem 0x1000 0x3fffffff cache
mem 0x40000000 0xffffffff none
mem 0x00000000 0x0fff none
[Switching to process 7171 thread 0x1c03]
[Switching to process 7171 thread 0x1c03]
Couldn't register BearNun.Stack-Meet-App with the bootstrap server. Error: unknown error code.
This generally means that another instance of this process was already running or is hung in the debugger.(gdb)

Not sure where another process would be running...I deleted the app from the iPhone, cleaned my project, and then ran it again (once the stop button was greyed out, I thought that meant that no processes in the program were running).

Michael Berry
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user990769
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  • There's no such thing as an iPhone emulator. What you're referring to is the iOS *Simulator*, which is rather different from an emulator (to wit, if it was an emulator then it would behave identically to the device (barring bugs)). – Lily Ballard Nov 19 '11 at 05:26
  • Can you add a complete backtrace of where the crash occurs? Just type `bt` in the debugger console and paste the output here. – Lily Ballard Nov 19 '11 at 05:27
  • Hey, added the debugger output in an edit in the original post since here wasn't enough space. – user990769 Nov 19 '11 at 07:41

2 Answers2

10

I think you have problem with case-sensitive. The iOS simulator isn't case-sensitive while the device is! I suggest if you work with some files or something like that, check your address and try again.

I hope it be useful for you!

Hamed Rajabi Varamini
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  • Yikes! Thanks for the tip - it's a great one! Let the case-combing begin! – user990769 Nov 19 '11 at 06:54
  • Thanks for the replies - my problem is looking like another in this thread. http://stackoverflow.com/questions/788277/iphone-strange-error-when-testing-on-simulator – user990769 Nov 19 '11 at 07:46
  • Oh "Couldn't register" error, I had same problem before and I found solution on this thread, perhaps this thread works for you (http://stackoverflow.com/q/7853136/893863) – Hamed Rajabi Varamini Nov 19 '11 at 08:09
1

I ran into the same problem. I had to completely power down my device and restart it and then it started working fine. Also had restarted Xcode.

jamihash
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