You are trying to create a MonoBehaviour using the 'new' keyword.

Hi!
I trying to add "Tokens" from Another static script.
Here is the scripts:

The code that send the command:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class UseItem : MonoBehaviour
5. {
6.  
7.     public static void Use(string ItemName)
8.     {
9.         Debug.Log("Custom item usage executing for item: " + ItemName);
10.  
11.         if (ItemName == "10 Tokens")
12.         {
13.             Tokens token = new Tokens();
14.             token.Purchase10();
15.         }
16.     }
17. }
18.  

The Script that should do the command:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using BayatGames.SaveGamePro;
5.  
6. public class Tokens : MonoBehaviour
7. {
8.     public int TOKENS = 0;
9.     // Start is called before the first frame update
10.     void Start()
11.     {
12.         TOKENS = SaveGame.Load<int>("TOKENS", TOKENS);
13.     }
14.  
15.     // Update is called once per frame
16.     void Update()
17.     {
18.         if (Input.GetButtonDown("Fire1"))
19.         {
20.             SaveGame.Save<int>("TOKENS", TOKENS);
21.  
22.         }
23.     }
24.     //buy
25.     public void Purchase10()
26.     {
27.         TOKENS += 10;
28.         Debug.Log("Success 10+");
29.     }
30. }

The error i gets is:

You are trying to create a MonoBehaviour using the 'new' keyword.  This is not allowed.  MonoBehaviours can only be added using AddComponent(). Alternatively, your script can inherit from ScriptableObject or no base class at all

UnityEngine.MonoBehaviour:.ctor()

Tokens:.ctor() (at Assets/Scripts/Tokens.cs:8)

UseItem:Use(String) (at Assets/Store/UseItem.cs:13)

DialogScreenActions:onClickOk() (at Assets/Store/DialogScreenActions.cs:85)

UnityEngine.EventSystems.EventSystem:Update()

Thanks
I hope you understand my problem.. It's a bit complicated to explain.

 

Your Token Class inherit from monobehaviour.

Thus you should'nt call "new" as the error message is telling you but AddComponent.

Code (CSharp):

1. Tokens token = new Tokens(); // do this with non monobehaviour c# class
2.  
3. Tokens token = gameObject.AddComponent<Tokens>(); // do this instead