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I got a rare problem that randomly when I ran my app in xcode, the simulator will stop and in the debug area only "(lldb)" is shown. It is random because when I ran again without modifying my code, it will run. What could have been the problem? I tried it in my other projects but still the same. Thank you.
xcode 4.6.2 Mountain Lion 10.8.4 (lldb error starts after updating 10.8.4 from 10.8.3, I don't know if this has some impact on xcode)
(lldb) bt
* thread #1: tid = 0x1c03, 0x94f06a6a libsystem_kernel.dylib`__pthread_kill + 10, stop reason = signal SIGABRT
frame #0: 0x94f06a6a libsystem_kernel.dylib`__pthread_kill + 10
frame #1: 0x907b1b2f libsystem_c.dylib`pthread_kill + 101
frame #2: 0x018db57b libsystem_sim_c.dylib`abort + 140
frame #3: 0x01f45b4e GraphicsServices`GSRegisterPurpleNamedPort + 348
frame #4: 0x01f4569f GraphicsServices`_GSEventInitialize + 123
frame #5: 0x01f45c1f GraphicsServices`GSEventInitialize + 36
frame #6: 0x0027ed99 UIKit`UIApplicationMain + 600
frame #7: 0x00001ccd sampleapp`main(argc=1, argv=0xbffff3a0) + 141 at main.m:16
453
The po command (a.k.a. expr --O -- ) does everything that p does, but instead of printing the result, if the result is a pointer to an ObjC object, it calls that object's "description" method, and prints the string returned by that method(*).
In the debug area, after you see the lldb, type in bt, this will show you the crash log. Hopefully this will give you some insight as to what caused the crash/stop.
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