私はEurekaを使ってImageRowを追加しようとしていますが、未解決の識別子ImageRow Errorを使い続けているのはなぜですか？

import UIKit 
import Eureka 
import DigitsKit 
//MARK: HiddenRowsExample 
class SettingsViewController: FormViewController { 

      override func viewDidLoad() { 
       super.viewDidLoad() 

       let section = Section() 
      //line below gives me an error: Use of unresolved Identifier 'ImageRow'  
        <<< ImageRow() { 
         $0.title = "Profile Photo" 
         $0.sourceTypes = [.PhotoLibrary, .SavedPhotosAlbum] 
         $0.clearAction = .yes(style: UIAlertActionStyle.destructive) 

         }.cellUpdate({(cell, row) ->() in 
          row.accessoryView?.layer.cornerRadius = 18 
          row.accessoryView?.frame = CGRect(x:0, y:0, width:34, height:34) 
       }) 

       section.append(TextRow() { $0.placeholder = "Username" }) 
       section.append(PasswordRow() { $0.placeholder = "Password" }) 
       section.append(EmailRow(){$0.placeholder = "Email"}) 
       section.append(PhoneRow() {$0.placeholder = "Phone"}) 
       section.append(
        ButtonRow() { (row:ButtonRow) ->Void in 
         row.title = "Save" 
         row.onCellSelection(self.save) 
         row.cell.backgroundColor = UIColor(red: 1.0/255, green: 87.0/255, blue: 184.0/255, alpha: 1.0) 
         row.cell.tintColor = UIColor.white

出典

2016-10-25 user2494343