nsexception

I'm new to app development and I'm following Apple's tutorial to learn. I've looked through a lot of questions asked about this type of error but none of them are helping me. In the tutorial, I'm stuck on the "Add Buttons to the View" section where I'm trying to implement a string to be printed out on the console when a button is tapped/clicked on. Only I get an error when doing so. My code for the button in Swift: import UIKit class StarRatingControl: UIView { // MARK: Initialization required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) let button = UIButton(frame: CGRect(x: 0

I have this method: + (MHTwitterParser*)createParser:(NSString*)format { if ([format compare:@"json"] == NSOrderedSame) { return [[MHJsonTwitterParser alloc] init]; } [NSException raise:@"Unknown format" format:@"Unknown format of parser"]; } Compiler complains that: Control may reach end of non-void function It is just a warning, but it does not matter. Obvious fix for that is to add for example return nil; after the [NSException raise: ... . However, I think it is not needed (and is even misleading for readers), because the exception is thrown, so it is not true that "Control may reach end

I am currently trying to figure out how to use iOS 10's AVCapturePhotoOutput method and am having trouble doing so. I feel like I am about to get it right but continue receiving an error: Terminating app due to uncaught exception 'NSGenericException', reason: '-[AVCapturePhotoOutput capturePhotoWithSettings:delegate:] No active and enabled video connection' I have tried to put this line of code in either the AVCapturePhotoCaptureDelegate or my didPressTakePhoto function: if let videoConnection = stillImageOutput.connection(withMediaType: AVMediaTypeVideo) { videoConnection.videoOrientation =

So far I used NSUncaughtExceptionHandler within code: void uncaughtExceptionHandler(NSException *exception) { NSLog(@"*************************************************"); NSLog(@"CRASH: %@", exception); NSLog(@"Stack Trace: %@", [exception callStackSymbols]); NSLog(@"*************************************************"); } NSUncaughtExceptionHandler *exceptionHandlerPtr = &uncaughtExceptionHandler; I know that in Xcode I can Add Exception Breakpoint for all exceptions: Then I can Edit Breakpoint : and finally I do not know how to configure this to replace my code from NSUncaughtExceptionHandler

Trying to build and debug a universal app for iOS 3.0 using Xcode 4.3.2. I'm getting a NSException from NSKeyedUnarchiver. It seems it may be related to inability to read the main .xib file. I have seen this: iOS and unarchiving xib files -- however, in that case it's not clear the app is Universal (their solution doesn't work) (NOTE: Their solution doesn't work because they're using Xcode 4.2, not 4.3). Here's the error output: 2000-01-01 11:00:39.-19 myApp[664:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSKeyedUnarchiver

First of all, I am new to iOS and Swift and come from a background of Android/Java programming. So to me the idea of catching an exception from an attempt to write to a file is second nature, in case of lack of space, file permissions problems, or whatever else can possibly happen to a file (and has happened, in my experience). I also understand that in Swift, exceptions are different from Android/Java ones, so that's not what I'm asking about here. I am attempting to append to a file using NSFileHandle, like so: let fileHandle: NSFileHandle? = NSFileHandle(forUpdatingAtPath: filename) if