The script 'Game' does not contain a class derived from UnityEngine.MonoBehaviur

Hey! Today I ran into this error: The script Game does not contain a class derived from UnityEngine.MonoBehaviour. I don't know what to do, I tried to change the name of the MonoBehaviour class to the name of the file in the script itself - it did not help. Below I will send a screenshot of the error and code. Hope someone can help.

 

There are a number of errors in the 'Game' script which I've corrected below. For reference, compare the updated code with your original script then test it in your project.

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.UI;
3. using System.Collections;
4. using System.Collections.Generic;
5.  
6. public class Game : MonoBehaviour {
7.     // --
8.     public Transform ShopPan;
9.     public Text MoneyText;
10.     public int Money;
11.     public int MoneyUp = 1;
12.     private bool Check = true;
13.  
14.     // --
15.     void Update() {
16.         MoneyText.text = Money.ToString();
17.     }
18.     // --
19.     public void OnClickButton() {
20.         Money += MoneyUp;
21.     }
22.     // --
23.     public void OnClickShopButton() {
24.         if (Check == true) {
25.             ShopPan.gameObject.SetActive(true);
26.             Check = false;
27.         }
28.     }
29.     // --
30.     public void OnClickBuy() {
31.         if (Money >= 100) {
32.             Money *= 2;
33.             Money -= 100;
34.         }
35.     }
36. }

 

Тhanks very much. I corrected the code, but the error persists. Most likely I need to reinstall Unity.

 

Have you replaced the original script with the code above ?

 

Yes of course

 

i have also the same problem

 

help

 

Your script file is called

walking

, but your class is called

ExampleClass

. The class must be the same as the file name. So either change your class to be

walking

or change your filename to be

ExampleClass

.

This is a forum, not a chat board. You have to waiting longer than 2 minutes for someone to help you.

 

Code (CSharp):

1. mit System.Collections;
2. Verwendung von System.Collections.Generic;
3. Verwendung von UnityEngine;
4.  
5. öffentliche Klasse 3DBewegung : MonoBehaviour
6.  
7. float horizontal
8. [SerialzeField] float moveSpeed;
9.  
10. Start wird vor der ersten Frame-Aktualisierung aufgerufen
11.     void Start()
12.     {
13.        
14.     }
15.  
16. Update wird einmal pro Frame aufgerufen
17.     void Update()
18.     {
19.        
20.     }
21. }
22. festes Update
23.  
24. horizontal = Eingang. GetAxis("Horizontal")
25.  
26. if (horizontal < 0)
27.     {
28. Verwandeln. Übersetzen (Vector3.right * moveSpeed);
29. }
30. if (horizontal > 0)
31. transform.translate (Vector3.left * moveSpeed);
32.  
33.  

 

ES FUNKTIONIERT NICHT

 

It doesn´ t works

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class movement : MonoBehaviour
{
public float speed;
void Start()
{

}
void Update()
{
Vector3 movementVector = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
transform.Translate(movementVector * Time.deltaTime * speed);
}
}

 

Thanks A

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class DamagePlayer : MonoBehaviour
{
public LayerMask playerLayer;
public gameObject player;
void OnTriggerEnter2D(collider2D collider)
{
if (collider.IsTouchingLayers(playerLayer))
{
player.GetComponent<HealthSystem>().TakeDamage(5);
}
}
}

I have the same problem

 

This is my error: The Script 'DamagePlayer' does not contain a class derived from UnityEngine.MonoBehavior

 

Please use proper code formatting on the forum. You can find how to do it here:
https://forum.unity.com/threads/using-code-tags-properly.134625/

Just look at the previous posts which you have hijacked, their code is readable, yours is a mess.

With that said, do you have errors in the console besides this one?

 

Capilatise the C in Collider2D

Change

collider2D

to

Collider2D

 

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

public class MapGenorater : MonoBehaviour
{
public int mapWidth;
public int mapHeight;
public float noiseScale;

public void GenerateMap()
{
float[,] noiseMap = Noise.GenerateNoiseMap(mapWidth, mapHeight, noiseScale);


}

}
this is my problem when i try to attach to script to a object it says does not contain a class derived from UnityEngine.MonoBehavior

 

it says: the script 2d player controller does not contain a class derived from UnityEngine.MonoBehaviour
can you help me please?

 

It's because your file is called

2d player controller

, but the class is

NewBehaviourScript

The filename and class name must match exactly (case sensitive as well), and you can't have spaces in your class name so be aware of that when you name your script file. When creating your script you should be naming it at that time as that sets the class name to match, however if you rename the script name it does not rename the class and you have to do that yourself.

 

I found that this error also occurs sometimes when there is ANOTHER script with a compile-breaking error in it.

Fixing any console errors will sometimes fix this. You can especially know if this is an issue by saving unity, closing it, and when reopening it take note if it tries to open in safe-mode. If it does, you might just have a few errors to fix in other scripts before it will compile. I noticed this when I installed a broken plugin.