线程1：尝试播放音频时EXC_BAD_ACCESS（代码= 1，地址= 0x48）错误

Question

我试图在Xcode中按下按钮时播放音频文件。我已经将其用于以前的项目（在Xcode的早期版本中），但是现在当我尝试执行此操作时，我得到了错误。我的文件保存在主捆绑包中。

  

线程1：EXC_BAD_ACCESS（代码= 1，地址= 0x48）

func playExpression(_ word: String){

    //sets up the audio player for the word
    var player:AVAudioPlayer = AVAudioPlayer()

    do {
        //gets the audio file and links it to the player.
        let path = Bundle.main.path(forResource: word, ofType: "mp3")
        try player = AVAudioPlayer(contentsOf: NSURL(fileURLWithPath: path!) as URL)
    }
    catch {
        /*ERROR*/
    }

    //plays the  audio clip
    player.play()
    print("audio played")
    sleep(UInt32(1)) //gives the audio clip time to play
}

@IBAction func speakerPressed(_ sender: UIButton) {
        playExpression("testaudio")
    }