NullReferenceException on assigning vector3 to mesh.vertices - no effect on assignment?

Questions & Answers
1

When I assigned a global vector3 array to vertices, I get a null reference exception. Not sure why, as the arrays are both the same size, etc.

NullReferenceException: Object reference not set to an instance of an object

    var msh:Mesh=clay.GetComponent.().mesh;
    var vertices:Vector3[]=msh.vertices;
    for(var p:int=0;p<vertices.Length;p++){
        vertices[p]=saveOn[p];
    }

*Fixed by declaring SaveOn:Vector3[], and then defining an explicit length.

2

*Fixed by declaring SaveOn:Vector3[], and then defining an explicit length.

`SaveOn = new Vector3[vertices.length]`