title: Swift App - Cannot find 'SKStoreProductViewController' in scope
body: <p>I am trying to do a simple app to open a deeplink to the Salesforce app, or redirect to the App Store if not installed.</p>
  <p>I am launching the code from the View Controller but when trying to use SKStoreProductViewController it is telling me it is not in scope.</p>
  <p>Any ideas on why this is the case?</p>
  <pre><code>import UIKit
  
  class ViewController: UIViewController {
  
      override func viewDidLoad() {
          super.viewDidLoad()
          // Do any additional setup after loading the view.
          
          guard let url = URL(string: &quot;salesforce1://sObject/--------/view&quot;) else {
                  return
              }
          
          if UIApplication.shared.canOpenURL(url) {
              // deep link to Einstein
              UIApplication.shared.open(url, options: [:], completionHandler: nil)
          }
          else {
              // app store if not installed
              let vc = SKStoreProductViewController() //THROWS ERROR
              
          }
      }
  
  
  }
  </code></pre>