Instantiate on collision warning

I am getting the following warning when trying to instantiate a prefab upon a collision with an object:
"Number of parameter does not match expected count."
Here is the script:

Code (csharp):

1. function OnCollisionEnter (object) {
2.     if (object.transform.name == "proj(Clone)") {
3.             var contact = object.contacts[0];
4.             var rot = Quaternion.FromToRotation(Vector3.up, contact.normal);
5.             var pos = contact.point;
6.             Instantiate(prefab1, pos, rot);
7.     }
8. }

Any ideas what's going wrong?

 

the OnCollisionEnter function wants to be passed a Collision, not a GameObject.

Replace the first two lines with:

Code (csharp):

1. function OnCollisionEnter (collision : Collision) {
2.  if (collision.collider.gameObject.name == "proj(Clone)") {

 

Great. Thanks Yoggy!