Command failed due to signal: Abort trap: 6

Question

Since Xcode 7 and Swift 2.0, I get the error above, like in the screenshot shown here:

Answer 1

In my case

Error

override func observeValueForKeyPath(keyPath: (String!)?, ofObject object: (AnyObject!)?, change: ([NSObject : AnyObject]!)?, context: UnsafeMutablePointer)

Ok

override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [NSObject : AnyObject]?, context: UnsafeMutablePointer)