title: The app's Info.plist must contain an NSContactsUsageDescription?
body: <p>While fetching the contacts list using NSContactsUsageDescription, I am getting the below error.</p>
  
  <blockquote>
    <p>This app has crashed because it attempted to access privacy-sensitive
    data without a usage description.  The app's Info.plist must contain
    an NSContactsUsageDescription key with a string value explaining to
    the user how the app uses this data.</p>
  </blockquote>
  
  <p>Also it was taking very long time to fetch the entire contact list in swift and in swift 3 there is this error.</p>