title: Why can't I use JTAppleCalendar Pod File JTAppleCell in Swift 3?
body: <p>I am using a JTAppleCalendar pod file in my project and when I installed the pod file I couldn't use the method JTAppleCell and I just could use JTAppleDayCell I watched this video
   <a href="https://www.youtube.com/watch?v=Qd_Gc67xzlw" rel="nofollow noreferrer">https://www.youtube.com/watch?v=Qd_Gc67xzlw</a> 
  and this 
  <a href="https://www.youtube.com/watch?v=zOphH-h-qCs" rel="nofollow noreferrer">https://www.youtube.com/watch?v=zOphH-h-qCs</a>
   Here is my codes </p>
  
  <pre><code>import UIKit
  import JTAppleCalendar
  
  class calendarViewController: UIViewController {
  
  
  @IBOutlet weak var calendarCollectionView: UICollectionView!
  
  
  let formatter = DateFormatter()
  
  override func viewDidLoad() {
      super.viewDidLoad()
  
  
  }
  
  override func didReceiveMemoryWarning() {
      super.didReceiveMemoryWarning()
  
  }
  
  
  }
  
  extension calendarViewController : JTAppleCalendarViewDataSource {
  
  
  func configureCalendar(_ calendar: JTAppleCalendarView) -&gt; ConfigurationParameters {
      formatter.dateFormat = "yyyy MM dd"
      formatter.timeZone = Calendar.current.timeZone
      formatter.locale = Calendar.current.locale
  
  
      let startDate = formatter.date(from: "2017 01 01")!
      let endDate = formatter.date(from: "2017 12 31")!
  
      let parameters = ConfigurationParameters(startDate: startDate, endDate: endDate)
      return parameters
  }
  
  
  func calendar(_calebdar : JTAppleCalendarView , cellForItemAt date : Date , cellState : CellState , indexPath : IndexPath ) -&gt; JTAppleDayCell {
  
      let cell = calendarCollectionView.dequeueReusableCell(withReuseIdentifier: "JTCustomCell", for: indexPath) as! JTCustomCell
      cell.dateLabel.text = cellState.text
  
      return cell
  }
  
  }
  </code></pre>