unrecognized-selector

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:]:

I am using some third party software to aid in writing an iPad application using Xcode 4.3.2. The software is open source and is usually set up so its code will be compiled along with whatever code the developer writes for the application. Because I was using the software in numerous places, I decided to build it as a static library for the iOS simulator. I was able to build the library, and convert one application to link to that library instead of compiling the original source code. However, when I go to run the application on the simulator, I get an error that says, unrecognized selector

Problem This question may seem a bit long, but I try to give as much information as possible, since I am really staggered by this. I am currently working an a library which should automate XML document parsing. But I am running into a problem now testing the library for the first time. I have a library class called CSXDocumentLayout which represents the layout of a document. This class contains the private method - (NSError *)readLayoutDocument:(NSString *)fpath called from an init method. /* MARK: Reading in Layouts */ - (NSError *)readLayoutDocument:(NSString *)fpath { CSXDocumentLayout

I am trying to set the text of a label from one of the properties of my model object ( searchRecipeDetailsVariable ), but I get an error //Extract number of servings from dictionary and place in model self.searchedRecipeDetailsVariable.numberOfServings = [self.detailedSearchYummlyRecipeResults objectForKey: @"numberOfServings"]; //log number of servings to check that it works NSLog(@"Number of Servings, %@",self.searchedRecipeDetailsVariable.numberOfServings); self.numberOfServingsLabel.text = self.searchedRecipeDetailsVariable.numberOfServings; When I print the value, I can see the number

I'm trying to add in my app the possibility to dismiss the keyboard when the user taps somewhere else out of the text fields. I'm implementing this functionality using UITapGestureRecognizer. I create a new UITapGestureRecognizer object using the Unrecognized selector with UITapGestureRecognizer(target: Any?, action: Selector?) and set the action parameter to a function that resigns the first responder of both the text fields I'm using in this view. I set everything properly adding the keyword @objc before the method I pass as action and using the #selector(dismissKeyboard) form, but when I

This is how I initialize my NSMutablearray. I copy the content of cityList into cityArray. Both are NSMutableArray. FYI, I declared the'cityArray' using extern. cityArray = [[NSMutableArray alloc] init]; [cityArray addObjectsFromArray:cityList]; Then, in other method in another class, I tried to to add one more object into 'cityArray' This is how I do it. But it keep crashing when it run this line of code. NSString *allCities = @"All Cities"; [[cityArray valueForKey:@"cityName"] addObject:allCities]; This is from the console '[__NSArrayI addObject:]: unrecognized selector sent to instance

Recently i switch my app to iOS 7 compatibility and the app working fine but if i switched on the Button Shape option (Available in iOS 7.1) in device setting (Setting--> Accessblity--> Button shape switch) then app crash and gives following error:- -[NSAttributeDictionary textContainerForAttributedString:containerSize:lineFragmentPadding:]: unrecognized selector sent to instance 0x17e4e310 CoreFoundation And the app work fine when button shape option switched off. crash stack trace:- -[NSAttributeDictionary textContainerForAttributedString:containerSize:lineFragmentPadding:]: unrecognized