I have an NSRangeException error that does not occur all the time(especially when I am debugging). It comes up randomly, and I am unable to figure out where it is coming from. I have lots of array manipulation, so its difficult to eliminate it that way.
My question is whether I can get a clue , for example class and line number from the debugger output, for example what are the numbers 12109 and 707?:
2012-03-15 09:25:15.303 appname[12109:707] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 2 beyond bounds [0 .. 0]'
Any pointers appreciated.
Edit:
Remaining part of the log:
*** First throw call stack:
(0x33ff38bf 0x342431e5 0x33f4b275 0x1702d 0x37662331 0x3761b2b3 0x33f4d435 0x373b79eb 0x373b79a7 0x373b7985 0x373b76f5 0x3744de55 0x374e3e45 0x373aa99b 0x33fc7b4b 0x33fc5d87 0x33fc60e1 0x33f494dd 0x33f493a5 0x307cdfcd 0x373ca743 0x2325 0x22e4)
terminate called throwing an exception
Add an Exception breakpoint. This will stop on the line that raises the exception.
In the breakpoints navigator, click the plus in the bottom left, choose exception breakpoint, and all exceptions. You should have this on all projects really, it is invaluable. We'd have far fewer questions here, though!
Look further down in your crash log, and chances are that at some point it will point to an actual method and line.
For e.g. in the below block from a device crash log, the last line clearly points to the request:didLoad: method in the FacebookController.m class at line 264.
0x33defacb -[NSObject doesNotRecognizeSelector:] + 175
0x33dee945 ___forwarding___ + 301
0x33d49680 _CF_forwarding_prep_0 + 48
0x00037e47 -[FacebookController request:didLoad:] (FacebookController.m:264)
Related
So I'm loading some images from files which I saved in the app's document directory and upon completion, I update a dictionary which holds all the images for my tableview. So far so good, everything's working just fine.
But now I've stumbled upon a really peculiar crash. Sometimes when updating the dictionary the app crashes, giving me the error message: "Heap corruption detected, free list is damaged at ...".
I've added a symbolic breakpoint at malloc_error_break and turned on the Address Sanitizer the Undefined Behaviour Sanitizer and Zombie Objects as advised in this post: iOS error : Heap corruption detected, free list is damaged and Incorrect guard value: 0
Now I'm getting the following error message, which doesn't really help me either:
2019-06-09 17:35:20.806306+0200 Wizy[9953:3221129] -[NSIndexPath count]: unrecognized selector sent to instance 0x8000000000000000
2019-06-09 17:36:28.490834+0200 Wizy[9953:3221129] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSIndexPath count]: unrecognized selector sent to instance 0x8000000000000000'
*** First throw call stack:
(0x1fc9d7ea0 0x1fbba9a40 0x1fc8f0d04 0x1fc9dd7b8 0x1fc9df45c 0x10952fbdc 0x10952fb5c 0x104868004 0x10461a178 0x104b59fd8 0x1045e4bd0 0x1067817c8 0x10a093824 0x10a094dc8 0x10a0a6330 0x10a0a6bc8 0x1fc5f417c 0x1fc5f6cec)
libc++abi.dylib: terminating with uncaught exception of type NSException
I have no clue as to what could've caused that crash, hopefully someone can help me out here!
I'm testing the Sphero-AR-SDK found on GitHub (https://github.com/orbotix/Sphero-AR-SDK)
When testing, I seem to have random crashes on connect.
The issue I'm trying to debug is an index out of range error.
*"*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 0 beyond bounds for empty array'
*** First throw call stack:
(0x325102a3 0x3a22d97f 0x3245bb75 0x8cb42b 0x32e270f5 0x324e5683 0x324e4ee9 0x324e3cb7 0x32456ebd 0x32456d49 0x3602d2eb 0x3436c301 0x7f10 0x3188)
libc++abi.dylib: terminate called throwing an exception"*
This happens a fair amount when booting the application but not all the time (sometimes it will get through and play the game).
I was wondering if anyone else was having issues with these random crashes or have I not set it up correctly?
I've had a look at the "Other Linker Flags" in XCode too and it has -all_load.
Also, I've safely checked the only place where I could find an array object access in the .mm files (RKUNBridge.mm) has this line:
[RKDeviceSensorsData *data = [sensors_data.dataFrames objectAtIndex:0];
And I safely checked this array exists and is greater than one to double check it's not this line.
Any ideas or suggestions would be much appreciated.
Thanks for reading.
When I follow this tutorial, it gives me an error on the [playercontroller release]; line, so I remove it, and then it gives me these errors when I try to run it.
I tried making another app to test the video, and it works seamlessly, but it will not work in my main app. Can anyone help?
And when I reimported the framework, and tried to play the video, it gives me this error:
2012-08-17 11:27:03.174 LYWAM Tour[768:c07] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL initFileURLWithPath:]: nil string parameter'
*** First throw call stack:
(0x1e15022 0x10fdcd6 0x1dbda48 0x1dbd9b9 0xba253b 0xba24c5 0x54ac 0x1e16e99 0x26314e 0x2630e6 0x309ade 0x309fa7 0x308d8a 0x2882cf 0x2885e6 0x26edc4 0x262634 0x16f7ef5 0x1de9195 0x1d4dff2 0x1d4c8da 0x1d4bd84 0x1d4bc9b 0x16f67d8 0x16f688a 0x260626 0x24cd 0x2435 0x1)
terminate called throwing an exception(lldb)
I take it GVE1ViewController is a class you wrote yourself? Does it definitely implement a method called GrommeVideoExcerpt1? Is what you assigned to the variable actually an instance of GVE1ViewController (or a subclass?) Put in an NSLog to check that it really is an instance of GVE1ViewController.
To do the NSLog, you need a line of the form:
NSLog(#" My controller = %#", myVar);
where myVar is whatever variable you have containing a reference to the GVE1ViewController.
Ok so yesterday I had some trouble with this error, turned out I just needed to be patient and read through more of the book. This time I have got to the end of the project and I am getting this error at a different point.
I have isolated the line of code causing the issue but I'm not sure what the issue is!
htmlString=[htmlString stringByAppendingString: appDelegate.savedNumber];
Debug console is saying:
2012-08-09 13:06:47.235 tester[1357:c07] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[__NSCFConstantString stringByAppendingString:]: nil argument'
*** First throw call stack:
(0x14b3022 0xeb3cd6 0x145ba48 0x145b9b9 0x941b92 0x29bd 0xdda1e 0x3c401 0x3c670 0x3c836 0x4372a 0x24c2 0x14386 0x15274 0x24183 0x24c38 0x18634 0x139def5 0x1487195 0x13ebff2 0x13ea8da 0x13e9d84 0x13e9c9b 0x14c65 0x16626 0x20e2 0x2055)
terminate called throwing an exception
Anyone have any ideas? :)
It is because appDelegate.savedNumber is nil (does not set) . And why it is nil this is another question.
Looks like exactly what's written, you're passing nil argument to the method. Check if your savedNumber is a valid string object.
*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSMutableArray objectAtIndex:]: index 0 beyond bounds for empty array'
*** Call stack at first throw:
In my TableViewController I am loading list of arrays..... with selected its display's its detailedViewController...
When I get back and selected the same index or another index i get this exception NSRangeException...
I dont know what to do ?
Can any one help me out.
The array is empty at that point. A good idea is, add some lines of code like this:
NSLog(#"\n\n here, there are this many items: %d \n\n", [yourArrayName count]);
put that line in everywhere possible, add it in at least ten places.
Open your console ("Run" menu in XCode).
You'll soon figure out what is going wrong! hope it helps.