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Question by nitaym · Nov 12, 2016 at 08:12 PM · unity 52d2d gameerror message

Script Error: OnCollisionEnter2D

Hello,

I'm having the weirdest problem in Unity 5.4.1f1

I have a 2 2D sprite which fall one onto another. Both have Rigidbody 2D & Box Collider 2D. On of them has the following script attached:

 using UnityEngine;
 using System.Collections;
 
 public class TestScript : MonoBehaviour
 {
 
     // Use this for initialization
     void Start()
     {
 
     }
 
     // Update is called once per frame
     void Update()
     {
 
     }
 
     void OnCollisionEnter2D(Collision2D col)
     {
         Debug.Log("TEST");
     }
 
 }

When compiling in VS - No errors appear. Unity, however, shows this message in the console:

Script error: OnCollisionEnter2D This message parameter has to be of type: The message will be ignored.

And sure enough - The function isn't being called.

When I double click the error it takes me to the OnCollisionEnter2D function, but I don't know what need I do to fix it. Can anyone see what's the problem here?

Thanks Nitay

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Answer by romatallinn · Nov 12, 2016 at 09:07 PM

The code seems fine to me.

  1. Make sure that in code you use "Collision2D col" as a parameter for a method, but not "Collider2D".

  2. Try to close Unity and VS. Then open them again.

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avatar image nitaym · Nov 13, 2016 at 10:13 AM 0
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I've restarted everything. Didn't help... Does that script run okay at your end?

avatar image romatallinn nitaym · Nov 13, 2016 at 11:02 AM 0
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@nitaym Hm... I do not see any problems. The code works on my. Have you changed anything in rigidbody properties?

avatar image nitaym romatallinn · Nov 13, 2016 at 01:15 PM 0
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Nope. Looks like a bug I guess (at least the error message is). I've reported the bug

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