Tag Not Defined Help

Unity Engine
,
1

So my current code is:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EndGame : MonoBehaviour {

    void Update() {
        if (GameObject.FindWithTag ("Enemy") == null) {
            Debug.Log ("No Enemy");
          
            OnGUI();
        }
    }
  
    void OnGUI() {
        GUI.Label( new Rect(Screen.width/2 -50, Screen.height/2 -25, 100, 50), "Congratulations, you won! Restart the game!");
    }
}

But when I try to run it, I get this error:

UnityException: Tag: Enemy is not defined.
UnityEngine.GameObject.FindWithTag (System.String tag) (at C:/buildslave/unity/build/Runtime/Export/GameObject.bindings.cs:194)
EndGame.Update () (at Assets/Scripts/EndGame.cs:8)

I’m really stuck on this, it’s my first game, help pls.

Thanks!

2

add tag to the enemy
5095853--502175--AddTag.png

3

Can you change the code so it will detect layers instead? Or are tags better?