Error in Camera Tutorial that I can't seem to get right.

Questions & Answers
1

I was following a tutorial by WalkerBoy Studios about Cameras. I have an error:

Assets/2D Mario Assets/Scripts/cameraSmoothFollow2D.js(24,61): BCE0023: No appropriate version of 'UnityEngine.Mathf.SmoothDamp' for the argument list '(float, float, UnityEngine.Vector2, float)' was found.

var cameraTarget			:	GameObject;			
	
var smoothTime				:	float = 0.1;		
var cameraHeight			:	float = 2.5;		

var cameraFollowX			:	boolean =  true;	

var velocity				:	Vector2;
	
private var thisTransform	        :	Transform;
		
function Update ()
{
	if( cameraFollowX){
	
		thisTransform.position.x =  Mathf.SmoothDamp(thisTransform.position.x, cameraTarget.transform.position.x, velocity, smoothTime);}}

I know that the problem is the 3rd variable being a Vector 2. But in the tutorial it makes velocity a Vector 2. But how would fix this problem but have the same result as the tutorial?

2

The answer was because I set the velocity to Vector 2 but I didn’t put the X value into velocity

making the code to be:
thisTransform.position.x = Mathf.SmoothDamp(thisTransform.position.x, cameraTarget.transform.position.x, velocity.x, smoothTime),The answer was because I set the velocity to Vector 2 but I didn’t put the position of X

making the code to be:
thisTransform.position.x = Mathf.SmoothDamp(thisTransform.position.x, cameraTarget.transform.position.x, velocity.x, smoothTime)