I've got a really annoying problem, and as much as I've searched, I can't find the answer. My app is terminating when I try to view a TableView. The data source and delegate is set to the File's owner, which implements the protocol.
alt text http://grab.by/2IJV
alt text http://grab.by/2IK7
The error I'm getting looks like this:
[Session started at 2010-02-27 16:28:24 +0000.]
2010-02-27 16:28:27.209 Moola[28564:207] Unknown class FirstViewController in Interface Builder file.
2010-02-27 16:28:28.189 Moola[28564:207] *** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x5005900
2010-02-27 16:28:28.190 Moola[28564:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x5005900'
2010-02-27 16:28:28.190 Moola[28564:207] Stack: (
40692267,
2469430537,
40961963,
40426854,
40423522,
4542959,
4550376,
4549359,
3202411,
3139508,
3189226,
3176954,
68444159,
68443501,
68441542,
68440628,
68472982,
40444146,
40231701,
40228984,
49023565,
49023762,
2840157,
9184,
9038
)
Finally, here's the implementation file (SettingsController.m) of the SettingsController class:
alt text http://grab.by/2ILu
I'm sure this is a trivial problem for a pro, but I come from a highly web-based background, and only dabbled in C a while a few years back. To be truthful, it's hurting my head.
Thanks,
Jamie
What is FirstViewController as referenced in this disconcerting log line? Could it be some leftover reference that Interface Builder is actually trying to instantiate instead of your SettingsController?
2010-02-27 16:28:27.209 Moola[28564:207] Unknown class FirstViewController in Interface Builder file.
Are you sure that the receiver is indeed a SettingsController? Try
NSLog(#"receiver's type: %#", NSStringFromClass([foo class]));
just before the call that fails (and of course change "foo" to whatever the receiver's actual name is).
Related
Could someone please tell me what this means:
2013-02-08 11:19:49.394 xxxxx[10545:907] set selected tab with tag 3
2013-02-08 11:19:49.560 xxxxx[10545:907] did select item
2013-02-08 11:19:49.562 xxxxx[10545:907] tab clicked
2013-02-08 11:19:49.566 xxxxx[10545:907] will show view controller MoreViewController
2013-02-08 11:19:49.567 xxxxx[10545:907] will show other VC
2013-02-08 11:19:49.579 xxxxx[10545:907] -[__NSCFConstantString offImage]: unrecognized selector sent to instance 0x21994c
2013-02-08 11:19:49.580 xxxxx[10545:907] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFConstantString offImage]: unrecognized selector sent to instance 0x21994c'
I just tried modifying some code, however the modifications did not work. So pressed z and undid everything I modified, but now I get this error.
The "unrecognized selector sent to instance" error always means one thing: you are calling a method on an instance that does not support it. In this particular case, you have a line in your code that looks like this:
[someObject offImage];
On this line, someObject is an instance of string, which does not have an offImage method.
This problem could be caused by passing an object of a wrong type to some other method:
[someTarget objectWithOffImage:#"Hello"];
The method could be expecting an object that responds to offImage, but you are passing it a string.
Finally, you may be trying to invoke a method in a category, but you forgot to import the header file for the category.
You are sending the message -offImage to an instance of NSString which does not have a method with that name. Alter your code so that -offImage is sent to the right kind of object
I have a project that starts off with a navigation controller that goes to table view controller.
I'm now trying to make a tab controller first, but i'm getting the following error. The error doesn't occur if the tab controller isn't there.
2012-06-26 18:12:31.639 Medicine Tracker[1212:fb03] -[UITabBarController topViewController]: unrecognized selector sent to instance 0x6d64970
2012-06-26 18:12:31.667 Medicine Tracker[1212:fb03] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UITabBarController topViewController]: unrecognized selector sent to instance 0x6d64970'
* First throw call stack:
(0x16b4022 0x1845cd6 0x16b5cbd 0x161aed0 0x161acb2 0x3dc7 0x1d386 0x1e274 0x2d183 0x2dc38 0x21634 0x159eef5 0x1688195 0x15ecff2 0x15eb8da 0x15ead84 0x15eac9b 0x1dc65 0x1f626 0x278d 0x26f5)
terminate called throwing an exception
The topViewController method is not a member of UITabBarController. It does have a method called selectedViewController, which might provide the functionality that you need.
UITabBarController Class Reference
I am just writing code for paypal button as below in ViewDidLoad
UIButton *button = [[PayPal getInstance] getPayButtonWithTarget:self andAction:#selector(payWithPayPal) andButtonType:BUTTON_278x43];
and getting the crash as following
2011-11-17 05:41:39.541 MothProject[654:707] -[PayPal getPayButtonWithTarget:andAction:andButtonType:andButtonText:]: unrecognized selector sent to instance 0x2bd2d0
2011-11-17 05:41:39.548 MothProject[654:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[PayPal getPayButtonWithTarget:andAction:andButtonType:andButtonText:]: unrecognized selector sent to instance 0x2bd2d0'
*** First throw call stack:
(0x328d78bf 0x367411e5 0x328daacb 0x328d9945 0x32834680 0x8f9b 0x311837ff 0x3118fc39 0x3118faa9 0x3118f98f 0x3118f15b 0x3118ef53 0x31183673 0x31183349 0x77ad 0x311fd565 0x31275ce7 0x37a6e943 0x328aba63 0x328ab6c9 0x328aa29f 0x3282d4dd 0x3282d3a5 0x37f6efed 0x31178743 0x2831 0x27c8)
terminate called throwing an exceptionProgram received signal: “SIGABRT”.
Data Formatters temporarily unavailable, will re-try after a 'continue'. (Can't find dlopen function, so it is not possible to load shared libraries.)
I have used implemented all required delegate methods in self, and also used Delegate too,
What is issue, does anyone has idea about it?
I think you need to initialize the instance of PayPal first, using the method
-initializeWithAppID:forEnvironment:
I copied all my iphone viewcontroller files into an a new iPad project. (I changed the sizes of each nib files etc.)
Almost all viewControllers are working except for one viewcontroller say xview.
At the line [self.view add:xview.view] the code crashes with the following log
2011-06-22 14:08:56.435 RelaxInAMinutePad[5073:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL initFileURLWithPath:]: nil string parameter'
2011-06-22 14:08:56.437 RelaxInAMinutePad[5073:207] Stack: (
47421520,
48579372,
47159051,
47158890,
1569479,
1563144,
19971,
20321,
19638,
23235,
4095877,
30247,
5636593,
3472622,
3970110,
3979456,
3970037,
3472622,
3970110,
3979456,
3974253,
3599848,
3491395,
3523032,
56414588,
46700700,
46696616,
56408221,
56408418,
3515250,
8984,
8838
)
terminate called after throwing an instance of 'NSException'
I am not using any URL or anything from my code.
I am not getting why this is caused. I am sure this is not about coding but some thing to do with resources or IB.
what may be the mistake and how to rectify?
Read the console:
reason: '*** -[NSURL initFileURLWithPath:]: nil string parameter'
Somewhere you are trying to instantiate an NSURL object, but the string you pass into it is nil.
check your line
[self.view add xview.view]
it should be
[self.view addSubview xview.view]
Maybe you not add Nib-file in new project, or any other resource files...
I am trying to set my imageview:
detailedEventViewController.thumbnail.image = [UIImage imageNamed:#"amnesia.png"];
but get the error:
2011-01-08 09:53:24.153 HD Pocket Vacations[24697:207] -[DetailedEventViewController thumbnail]: unrecognized selector sent to instance 0x624d820
2011-01-08 09:53:24.247 HD Pocket Vacations[24697:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[DetailedEventViewController thumbnail]: unrecognized selector sent to instance 0x624d820'
My outlets are wired up correctly.
There must be a problem with your "thumbnail" property.
As such, you'll need to check:
Whether it's been correctly defined and synthesized within your interface and implementation file(s).
Whether it's an UIImageView.
The spelling on all of the above.