UIImage iamge is out of scope

[a-elnajjar]

I have done lesson 4 of Your Second iOS & SwiftUI App. I have an issue with my UIImage view is not in the scope because of that it give me compile error. I comment out my code to be able to compile the code but I could not figure out why UIImage is out of the scope

this is my BookView

import SwiftUI

extension Book {
  struct Image: View {
    let title: String
    
    var body: some View {
      let symbol =
        SwiftUI.Image(title: title)
        ?? .init(systemName: "book")
      
      symbol
        .resizable()
        .scaledToFit()
        .frame(width: 80, height: 80)
        .font(Font.title.weight(.light))
        .foregroundColor(.secondary.opacity(0.5))
    }
  }
}

extension Image {
  init?(title: String) {
    guard
      let character = title.first,
      case let symbolName = "\(character.lowercased()).square"
        ,UIImage(systemName: symbolName) != nil <-- Cannot find 'UIImage' in scope 
    else {
      return nil
    }
    
    self.init(systemName: symbolName)
  }
}

struct Book_Previews: PreviewProvider {
  static var previews: some View {
    VStack {
      Book.Image(title: Book().title)
      Book.Image(title: "")
      Book.Image(title: "📖")
    }
  }
}