I am getting the following error:
-[__NSCFBoolean isEqualToString:]: unrecognized selector sent to instance 0x56bb95c
Is it possible to track down what's the variable responsible of this error? The stack call is not helping me in this scenario.
You have a BOOL type while you are considering it as NSString and trying to compare with some other string by isEqualToString:
[__NSCFBoolean isEqualToString:]
....^^^^^^^^^
Related
I'm doing this to set the value in UILabel:
NSMutableDictionary *responseDict = [responseString objectFromJSONString];
self.pkrLbl.text= [responseDict objectForKey:#"amount"];
and I'm getting this error:
[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x9440310
2013-05-16 15:23:34.281 EasyLoadPakistan[20341:19a03] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x9440310'
Please help me how can I set value in UIlabel
A UILabel expects a string (specifically NSString or one of its subclasses), and you are passing it a number (an NSNumber instance).
Convert the number to a string first, then set the label to that string:
NSNumber *n = [responseDict objectForKey:#"amount"];
NSString *stringVersion = [n stringValue];
self.pkrLbl.text = stringVersion;
If you prefer to have it all on one line, you can omit the variables and just chain the stringValue call. The approach shown above tends to facilitate debugging, though (you can for instance set a breakpoint and have a look at your variables).
I am having a slight code problem. I have an array but when I pull data out of it, I need it in the form of an int. To do this, I tried to use:
int main_id = [[courses valueForKey:#"id"] intValue];
but this gives me the error:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayI intValue]: unrecognized selector sent to instance 0x6b438d0'
*** First throw call stack:
(0x16ac022 0x183dcd6 0x16adcbd 0x1612ed0 0x1612cb2 0x4bf8 0x4fdd 0xdea1e 0xddfec 0x104f1d 0xef1cb 0x105df1 0x105e0d 0x105ea9 0x446f5 0x4473c 0x15596 0x16274 0x25183 0x25c38 0x19634 0x1596ef5 0x1680195 0x15e4ff2 0x15e38da 0x15e2d84 0x15e2c9b 0x15c65 0x17626 0x36ed 0x2695 0x1)
terminate called throwing an exception
I have found the answer. I was using an NSArray
NSArray *array;
That had another nsarray in it. I was trying to call the intvalue of a NSArray.
I get the following error when running my App:
2011-09-02 15:38:44.157 TheApp[9973:207] -[NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x4b28990
2011-09-02 15:38:44.160 TheApp[9973:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x4b28990'
And Xcode marks the line in this function in green:
- (void)oneCheckAndSetStrokes {
playerOneScoreNum.text = [playerOneScore objectAtIndex:(11)]; }
Therefore I'm guessing something is messed up with the Array. After som research I came across a lot of posts like this one: NSMutableArray : unrecognized selector sent to instance which seems to inticate that the error occurs when the Array is not being retain properly (hence my title).
So I'm trying to retain the Array in the file in wich it is initiated (which by the way is not the same file as the code above. The Array is also defined in another file, Globals.h, and then imported), in the following way:
- (void)viewDidLoad {
[super viewDidLoad];
playerOneScore = [[NSMutableArray alloc] initWithCapacity:19];
[playerOneScore retain]; }
This would solve the problem according to the post refered to earlier, but in my case it does not. Has anyone encountered something similar? It seems like I'm missing something trivial here.
The error you got has nothing to do with retain, you got that error because at this line:
playerOneScoreNum.text = [playerOneScore objectAtIndex:(11)];
you are trying to set a string property using a number object! You have to use "stringValue", in this way:
playerOneScoreNum.text = [[playerOneScore objectAtIndex:11] stringValue];
ps: wrapping the index (11) with parenthesis is useless :P
I have the following code which is producing this error. I cannot understand why the subarrayWithRange message is being sent to a string? When it is clearly an array?
static const int kItemsPerView = 20;
NSRange rangeForView = NSMakeRange( page * kItemsPerView, kItemsPerView );
NSMutableArray *temp = [[APP_DELEGATE keysArray] mutableCopyWithZone:NULL];
NSArray *itemsForView = [temp subarrayWithRange:rangeForView];
for (int loopCounter = 0;loopCounter < r*c;loopCounter++){
NSLog(#"%i: %# ", loopCounter, [itemsForView objectAtIndex:loopCounter]);
}
Error:
-[NSCFString subarrayWithRange:]: unrecognized selector sent to instance 0x6b071a0
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: [NSCFString subarrayWithRange:]:
Thanks
These kinds of errors are usually memory-management-related. Essentially, you're sending a message to an address that's now occupied by some other object because the previous occupant has unexpectedly disappeared. Since that address space could be occupied by anything, you just happen to be asking an NSCFString something to which it doesn't respond.
If you pause the debugger right after you create the temp array, what do you see assigned to temp? I'm guessing something's not quite right with whatever -keysArray returns. You might want to double-check how the memory is handled in whatever that's supposed to return. By the name, I suppose your app delegate has an array called "keysArray" as an instance variable. Perhaps that's not being properly retained when it's created or assigned?
So I had this one. I did something stupid. I assigned the UITextView to a string instead of it's text property. ie:
myObj.txtbxThing = [NSString stringWithFormat:#"%#", stuffString];
instead of:
myObj.txtbxThing.text = [NSString stringWithFormat:#"%#", stuffString];
so i am getting an uncaught exception and im not sure why. this is the error i get:
2010-08-22 10:39:25.080 MayanGlyphs[10903:207] * -[UILabel setAnswerText:]: unrecognized selector sent to instance 0x4916830
2010-08-22 10:39:25.081 MayanGlyphs[10903:207] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UILabel setAnswerText:]: unrecognized selector sent to instance 0x4916830'
also i am getting a warning that UILabel may not respond to setAnswerText (answerText is the name of the label) even though i have created the outlet, connected it in IB, and synthesized it.
does anyone know why this might be happening?
answerText is the name of the label? then what are you trying to do?
If you want to access the answerText object (that being an instance of UILabel) you need to use self.answerText not [UILabel setAnswerText];
If you want to change the text in the label use:
answerText.text = #"Hello, this is my text";
or similar.
You need to do [setAnswerText setText:#"my text"]; What you are doing now is wrong. The reason you get that exception is that UILabel does not have a class method called setAnswerText:.