Kotlin: Cannot find getter for field. private int id; Hatası

e: F:\Desktop\speedtest\main-files\speedtest\Speedtest\app\build\tmp\kapt3\stubs\debug\com\saystim\speedtest\data\model\ServerEntity.java:24: error: Cannot find getter for field.
    private int id;

package com.saystim.speedtest.data.model

import androidx.room.Entity
import androidx.room.PrimaryKey

/**
* Created by TechnoUpdate on 18.03.2020.
*/


@Entity(tableName = "servers")
class ServerEntity {
var url: String = ""
var lat: Double = 0.0
var lon: Double = 0.0
var name: String = ""
var country: String = ""
var cc: String = ""
var sponsor: String = ""
@PrimaryKey
var id: Int = 0
var url2: String = ""
var host: String = ""
var ip: String = ""
}