After Fixing the Tap Gesture Error, a new error pop up. fatal error: unexpectedly found nil while unwrapping an Optional

Question

import UIKit

class PlaylistMasterViewController: UIViewController {

var playlistsArray: [UIImageView] = []

@IBOutlet weak var playlistImageView0: UIImageView!

override func viewDidLoad() {
    super.viewDidLoad()

    playlistsArray.append(playlistImageView0)              ------ERROR  Thread 1 EXC_BAD_INSTRUCTION

    for index in 0..<playlistsArray.count {
        let playlist = Playlist(index: index)
        let playlistImageView = playlistsArray[index]

        playlistImageView.image = playlist.icon
        playlistImageView.backgroundColor = playlist.backgroundColor

    }

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "showPlaylistDetailSegue" {


        let playlistImageView = sender!.view as! UIImageView
        if let index = find(playlistsArray, playlistImageView) {


            let playlistDetailController = segue.destinationViewController as!
            PlaylistDetailViewController

            playlistDetailController.playlist = Playlist(index: index)

        }

    }
}


@IBAction func showPlaylistDetail(sender: AnyObject) {

        performSegueWithIdentifier("showPlaylistDetailSegue", sender: sender)
    }

}

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Philip Micallef

Philip Micallef

After Fixing the Tap Gesture Error, a new error pop up. fatal error: unexpectedly found nil while unwrapping an Optional