'The object of type 'BallMovement' has been destroyed but you are still trying to access it

I checked all over SO but couldn't find an answer that worked (or at least that I understood how to implement).

I just started Unity not too long ago and I'm trying to make a Pong clone. The game work great on the first run, but when a player wins and it switches to scene 2, then you press the Play Again button and go back to scene 1 (gameplay scene) I get this error while trying to play:

enter image description here

heres my Start method for the problematic class.

public class BallMovement : MonoBehaviour
{
    Rigidbody2D ball;
    Vector2 vel;

    // Start is called before the first frame update
    void Start()
    {
        float posY = Random.Range(-150, 150);
        ball = GameObject.FindGameObjectWithTag("Ball").GetComponent<Rigidbody2D>();
        transform.localPosition = new Vector2(-19, posY);
        vel.x = 250;
        vel.y = -150;
        ball.velocity = vel;

        GameStateManager.PlayerScored += Start;
    }
...

sorry for asking such a dumb/ vague question but I'm seriously stuck, I've been working on this pong clone for 8 hours and I managed to cross every hurdle on my own besides this

c++sharpunity3dgameobjecthtmlangularsassangular-materialrange


Solution 1:[1]

It seems you Delete/ Dispose the BallMovement class. I assume this is because you Delete/ Dispose the ball, and don't create the new ball with the BallMovement class/ script.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 rbdeenk

Related Questions