iOS 'NSException' crash help needed

nickculbertson · Apr 12, 2011

Hello,
The app I am working on is crashing for the following reason...

Code:

2011-04-12 14:51:04.917 Ukulele[5271:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL initFileURLWithPath:]: nil string parameter'
*** Call stack at first throw:
(
	0   CoreFoundation                      0x019b0be9 __exceptionPreprocess + 185
	1   libobjc.A.dylib                     0x01b055c2 objc_exception_throw + 47
	2   CoreFoundation                      0x01969628 +[NSException raise:format:arguments:] + 136
	3   CoreFoundation                      0x0196959a +[NSException raise:format:] + 58
	4   Foundation                          0x005d2b12 -[NSURL(NSURL) initFileURLWithPath:] + 90
	5   Foundation                          0x005d2aa0 +[NSURL(NSURL) fileURLWithPath:] + 72
	6   Ukulele                             0x0007089c -[FirstView touchesMoved:withEvent:] + 30360
	7   UIKit                               0x009022b8 forwardMethod2 + 92
	8   UIKit                               0x0085b07b -[UIWindow _sendTouchesForEvent:] + 481
	9   UIKit                               0x0083c37a -[UIApplication sendEvent:] + 447
	10  UIKit                               0x00841732 _UIApplicationHandleEvent + 7576
	11  GraphicsServices                    0x022e6a36 PurpleEventCallback + 1550
	12  GraphicsServices                    0x022e6abd PurpleEventSignalCallback + 42
	13  CoreFoundation                      0x0199201f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
	14  CoreFoundation                      0x018f019d __CFRunLoopDoSources0 + 333
	15  CoreFoundation                      0x018ef786 __CFRunLoopRun + 470
	16  CoreFoundation                      0x018ef240 CFRunLoopRunSpecific + 208
	17  CoreFoundation                      0x018ef161 CFRunLoopRunInMode + 97
	18  GraphicsServices                    0x022e5268 GSEventRunModal + 217
	19  GraphicsServices                    0x022e532d GSEventRun + 115
	20  UIKit                               0x0084542e UIApplicationMain + 1160
	21  Ukulele                             0x00001e0c main + 102
	22  Ukulele                             0x00001d9d start + 53
)
terminate called after throwing an instance of 'NSException'

Everything works fine at first.
I've been researching other similar topics on this but it has been fruitless thus far. Any clues as to what might be happening.

Thanks,
Nick

dejo · Apr 12, 2011

reason: '*** -[NSURL initFileURLWithPath:]: nil string parameter'

You have any idea what the problem is here?

nickculbertson · Apr 12, 2011

dejo said:
You have any idea what the problem is here?

According to a post at iphonedevsdk.

smasher:
" The error message says "nil string parameter," which suggest that you're passing and empty (nil) path. That still leaves a lot of things to check - How is that path being created? Is the file still part of your project, and also part of the current target? Try browsing to the build folder, and opening the package - is the file really inside it? "

I'm thinking the problem has something to do with the placement of the files in my project folder. I am using a duplicated xib file from another project and that also could be the source of the problem (not included properly).

Nick

balamw · Apr 12, 2011

nickculbertson said:
How is that path being created? Is the file still part of your project, and also part of the current target? Try browsing to the build folder, and opening the package - is the file really inside it?

You've got to let us see more of the code or layout of your project if we can help.

Focus around the initFileURLWithPath: in your code. Post an excerpt if you can.

B

nickculbertson · Apr 12, 2011

Thanks for your help guys. It seems the problem was a simple mistyping of an audio file name. When I've done this in the past it usually shows the name of the missing file in the console.
Thanks,
Nick

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iOS 'NSException' crash help needed

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