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6,405 PointsError saying that type UIView has no member layoutMarginsGuide when pinning to left margin using anchor API
I am trying to pin the green view to the left margin using anchor API's but when I do I get an error saying the type UIView has no member layoutMarginsGuide but when I put it in Xcode there is no error and it compiles fine. Why is workspaces giving me an error saying it does not recognize the member. My code is attached
class MyViewController: UIViewController {
let blueView = UIView()
let greenView = UIView()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(greenView)
view.addSubview(blueView)
}
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
blueView.translatesAutoresizingMaskIntoConstraints = false
greenView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activateConstraints([
NSLayoutConstraint(item: blueView, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 100.0),
NSLayoutConstraint(item: blueView, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 150.0),
NSLayoutConstraint(item: blueView, attribute: .Left, relatedBy: .Equal, toItem: view, attribute: .LeftMargin, multiplier: 1.0, constant: 8.0),
NSLayoutConstraint(item: blueView, attribute: .Top, relatedBy: .Equal, toItem: self.topLayoutGuide, attribute: .Bottom, multiplier: 1.0, constant: 8.0),
NSLayoutConstraint(item: blueView, attribute: .Right, relatedBy: .Equal, toItem: view, attribute: .RightMargin, multiplier: 1.0, constant: -8.0)
])
// Add constraint code below
NSLayoutConstraint.activateConstraints([greenView.topAnchor.constraintEqualToAnchor(blueView.bottomAnchor, constant: 8.0),
greenView.leadingAnchor.constraintEqualToAnchor(view.layoutMarginsGuide.leadingAnchor, constant: 0.0),
greenView.trailingAnchor.constraintEqualToAnchor(view.layoutMarginsGuide.trailingAnchor, constant: 0.0),
greenView.heightAnchor.constraintEqualToConstant(75)])
}
}