OnCollisionEnter Error "message parameter has to be of type: Collision"

I have been trying to get get a collsion based recation, eventually I was to use a trigger to manipulate the play seed of an animation. I started with a tutuorial I found here: http://vimeo.com/3870347
It uses the below script..(which I'm pretty sure was written in a pre-unity 3 version

function OnCollisionEnter (collisionInfo : Collision) {
if (collisionInfo.gameObject.tag == "sphere"){
var randy: int = Random.Range(-200, 200);
collisionInfo.gameObject.rigidbody.AddForce(Vector 3.up * 500);
collisionInfo.gameObject.rigidbody.AddForce(Vector 3.right * randy);
}
}

When I am done with the script I get an error that says:
"Script Error: OnCollisionEnter
This message parameter has to be of type: Collision"

If I change this first line to:

function OnTriggerEnter (collisionInfo : Collider){

I don't get the error but I still don't get the result that I want.

I have seen other people with this problem but there doesn't seem to by any clear solution. (see thread "Can't use FPSwalker AND Bouncy Physic Material")

I have the objects set up like the video says, I don't know what else to do. Please Help

 

Well it looks to me like your code in the first sample is correct. There'll be something else going on.

just as a test try making a new script with nothing in it except for

Code (csharp):

1.  
2. function OnCollisionEnter(collision : Collision) {
3.       Debug.Log("I'm working!");
4. }
5.  

If that works then try rebuilding the script bit by bit until it breaks.

 

So the solution is to name the script something other than "collision". I'm not sure why that is a problem but it is.

Thanks for the help.

 

Oh right.
The problem is that you calling your script Collision conflicts with Unity's definition of Collision. Because your script is more local to the function you were using it assumes that you were declaring your script Collision as the parameter not the Unity's Collision.

It's a good idea to avoid naming conflicts if you can but if you can't you can prepend the namespace of the object to get rid of any ambiguity like this:

Code (csharp):

1. function OnCollisionEnter(collision : UnityEngine.Collision) {
2.       Debug.Log("I'm working!");
3. }

 

In OnCollisionEnter2D function the parameter must be other than Collision2D

 

Dont know man isnt working..

 

Same problem your ways don't work

 

It's a 2011 thread, Unity is now using C#.
OnCollisionEnter2D needs a Collision2D parameter.
https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnCollisionEnter2D.html

Maybe post your code and your error in another thread so you'll be helped.