Object in canvas and collision2d?

Question

Unity

There are objects in the canvas, when they reach the collider, they must interact with it.
Why might not work?

void OnCollider2D (Collision2D coll)
    {
        if (coll.gameObject.tag == "BorderUp")
        {
            _MobUpGo.enabled = false;
            Debug.Log("yes");
        }
    }

Answer 1

it?
https://docs.unity3d.com/ScriptReference/Collider2...