Can't find SOTabBarView in scope???

[Parthiv586]

import UIKit
import SOTabBar
public var home = true
class ViewController: SOTabBarController {

override func loadView() {
    super.loadView()
    SOTabBarSetting.tabBarTintColor = .clear
    SOTabBarSetting.tabBarCircleSize = CGSize(width: 40, height: 40)
    SOTabBarSetting.tabBarHeight = 50
    SOTabBarSetting.tabBarAnimationDurationTime = 0.25
    SOTabBarSetting.tabBarSizeSelectedImage = 30
    SOTabBarSetting.tabBarSizeImage = 30
}

override func viewDidLoad() {
    super.viewDidLoad()
    
    self.delegate = self
    let homeStoryboard = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "HOME_ID")
    let chatStoryboard = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "CHAT_ID")
    let sleepStoryboard = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "SLEEP_ID")
    let musicStoryboard = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "MUSIC_ID")
    let meStoryboard = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ME_ID")
    homeStoryboard.tabBarItem = UITabBarItem(title: "Home", image: UIImage(named: "Home"), selectedImage: UIImage(named: "HomeFilled"))
    chatStoryboard.tabBarItem = UITabBarItem(title: "Search", image: UIImage(named: "Search"), selectedImage: UIImage(named: "SearchFilled"))
    sleepStoryboard.tabBarItem = UITabBarItem(title: "", image: UIImage(named: "abc"), selectedImage: UIImage(named: "abcn"))
    musicStoryboard.tabBarItem = UITabBarItem(title: "Inbox", image: UIImage(named: "Inbox"), selectedImage: UIImage(named: "InboxFilled"))
    meStoryboard.tabBarItem = UITabBarItem(title: "Profile", image: UIImage(named: "Profile"), selectedImage: UIImage(named: "ProfileFilled"))

    viewControllers = [homeStoryboard, chatStoryboard,sleepStoryboard,musicStoryboard,meStoryboard]
}
override func soTabBar(_ tabBar: SOTabBarView, didSelectTabAt index: Int) {
         print("did Tapped On \(index)")
     }

}

extension ViewController: SOTabBarControllerDelegate {
func tabBarController(_ tabBarController: SOTabBarController, didSelect viewController: UIViewController) {
let title = viewController.tabBarItem.title
print(title ?? "")

}

}