Sigabrt with error that class must have a valid NSEntityDescription

Question

As you can see in the title I'm getting a Sigabrt with error that class must have a valid NSEntityDescription. My answer is what I have to add to my project and where I have to implement this. If this is a obvious question don't judge me because I have just started with Swift & Core Data coding.

import UIKit
import CoreData

@objc (Trancsaction)
public class Trancsaction: NSManagedObject {
    var date: Date?{
        get{
            return rawDate as Date?
        }
        set {
            rawDate = newValue as NSDate?
        }
    }
    convenience init?(money: Double, date: Date?, reason: String?) {
        let appDelegate = UIApplication.shared.delegate as? AppDelegate

        guard let context = appDelegate?.persistentContainer.viewContext else {
            return nil
        }
        self.init(entity: Trancsaction.entity(), insertInto: context)

        self.reason = reason
        self.money = money
        self.date = date
    }
}

Answer 1

Try commenting this line @objc (Trancsaction)

//@objc (Trancsaction)
public class Trancsaction: NSManagedObject {