I'm creating the platform falling effect by unchecking the isKinematic but I keep getting the error : "MissingReferenceException: The object of type 'GameObject' has been destroyed but you are still trying to access it. Here is my code:

// Update is called once per frame
void Update()
{
    
}

private void OnCollisionExit(Collision collision){
    if(collision.gameObject.tag == "Player")
    {
        Fall();
        Invoke("Fall", 0.2f); //delay 0.2 s chu y dau va viet thuong
    }
}

void Fall(){
    GetComponent<Rigidbody>().isKinematic = false;
    Destroy(gameObject,1f);

}

} Here is the error in unity

Can anyone know how to fix this problem? Thank you.

CodePudding user response：

The flow of your current code is as following:

• Called Fall() once (After 1 second from that call the gameObject will be destroyed).
• You are using Invoke to call Fall() after 0.2 seconds while you have already a task to destroy the gameObject from the first call.

Update: I assumed that you want to set kinematic false immediately. I updated the piece of code :)

Code

using UnityEngine;

public class Q69205071 : MonoBehaviour
{
    private void OnCollisionExit(Collision collision)
    {
        if (collision.gameObject.tag == "Player")
        {
            //Fall(1f);
            /// since you want everything to be executed after 0.2 seconds
            /// you could use Invoke or coroutines.
            Invoke("Fall", 0.2f); 
        }
    }

    private void Fall()
    {
        GetComponent<Rigidbody>().isKinematic = false;
        Destroy(gameObject, 1f); // 1 seconds delay before destroying the gameObject
    }
}

Happy Coding :)