NSCocoaErrorDomain Error Code 4

I have a view controller, I want to action something on the view by calling a method in the view. But I get the errorfatal error: unexpectedly found nil while unwrapping an Optional valuebecause the view object isnt set. There are a couple of issues here, firstly I assume I am with MVC allowed to control the view from the view controller? Secondarily am I missing some association between the two, maybe on the storyboard? or do I set it up another way...Sorry for the basic question, but sometimes I get a bit lostKind regardsMark

Just learning Swift and I noticed that Apple's example code on the Swift homepage does not compile in playground! I mean really, am I missing something?https://developer.apple.com/swift/extension String { var banana : String { let shortName = String(dropFirst(characters)) return (self) (self) Bo B(shortName) Banana Fana Fo F(shortName) } } let bananaName = Jimmy.bananaI changed line 03 to: { let shortName = String(dropFirst(self))This seems to work. I tried to find feedback and let them know, but there seems to be no place for developers to provide simple feedback.

Safari was working just fine until I rebooted. Now it crashes. This is on a Imac. I am also running the beta on my Macbook Pro and it is fine there. One the imac I am getting an error message about java not working but not on the Macbook pro. Anyone else having this kind of problem..

HiAnyone has found a sample code or API documentation on how to access the audio stream coming from microphone in Apple Watch and how to control the gain of the microphone?Thanks in advance!

Hello everyone,Has anyone figured out a way to subclass NSNotification using Swift? I've done this in the past with Objective-C, but haven't figured out how to accomplish this with the rules for initializers in Swift. I realize there are alternatives to subclassing, but I'd really like to figure out how to do this. Here is a simplified version of what I'm attempting to do:class MyNotification: NSNotification { var someCustomData: String = override var name: String { return } override var object: AnyObject? { return nil } override var userInfo: [NSObject: AnyObject]? { return nil } required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) } init(someCustomData: String) { // Compiler wants me to call super.init, but this causes // issues since NSNotification is a class cluster. } }If I try calling super.init or using one of the NSNotification initializers when I instantiate an instance of MyNotification, I get this error:*** initialization method -initWithName:object:userInfo: cannot be s

In iOS 9 beta 1, there is a Use Side Switch To: preference allowing selection of Lock Rotation or Mute, similar to iPad. As a user, I expect to enjoy this feature as I don't personally have a need to quickly disable the mute feature, but often want to lock my phone in portrait mode when reading. However, I'm noticing two immediate differences that could affect app interaction design, and I wonder if only one is deliberate.1) Rotation lock, when controlled by the side switch, behaves like previous iPhone on-screen controls in that it locks vertically. From a development perspective, that means developers should continue to implement their own controls to force landscape when necessary. YouTube provides a good example of this with their full screen control, whereas many creative apps have only a landscape mode.2) Mute is not available in Control Center, leaving no clear ability to acheive the mute functionality the side switch has toggled since the original iPhone. iPad has had this preference available since i

Hello all, I've just created a new playground to test drive the new GameplayKit and I can't seem to get the playground out of a continuous running playground that never ends.Just for kicks, I deleted my code and replaced it for the one that comes by default (the hello playground stuff) and it has still not finished running.Should I file a radar?Has anyone experienced this?Thanks!

When trying to install a package I received the error A Python runtime could not be located. Has Python moved on 10.11 or is there a special framework I need to install?Thanks in advance.