线程1 exc_bad_instruction（code = exc_i386_invop subcode = 0x0）

Question

我已经构建了一个功能齐全的飞鸟游戏但是当我尝试添加声音时，我甚至无法运行该项目，因为在我玩游戏之前会弹出错误。错误是：

  thread 1 exc_bad_instruction (code=exc_i386_invop subcode=0x0) 

导入SpriteKit 导入AVFoundation GameScene：SKScene {

var bird = SKSpriteNode()
var pipeUpTexture = SKTexture()
var pipeDownTexture = SKTexture()
var PipesMoveAndRemove = SKAction()
var sound = try? AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath:    NSBundle.mainBundle().pathForResource("wingsSound", ofType: "waw")!))

let pipeGap = 150.0

覆盖func didMoveToView（view：SKView）{         / *在这里设置您的场景* /

    sound!.play()