Why nothing happens???

Questions & Answers
1

I have script from online to kill when you walk into it.

public class ExampleClass : MonoBehaviour {
void OnTriggerEnter(Collider other) {
Destroy(other.gameObject);
}
}

I get error when my player goes to it. 2d game

2

Use OnTriggerEnter when working with a 3D game. Since you’re working in 2D with sprites and box collider 2D, you need to use OnTriggerEnter2D()

void OnTriggerEnter2D(Collider other){
    Destory(other.gameObject);
}

More info here