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

Questions & Answers
1

#pragma strict

var unitSelected : boolean = false;

function Start ()
{
	
}

function Update ()
{
	var getCoords : Vector3;
	var hit : RaycastHit;
	var ray : Ray = Camera.main.ScreenPointToRay(Input.mousePosition);
	var currentUnit : Transform = hit.transform;
	
	if(Input.GetMouseButtonDown(0))
	{	
		print(unitSelected + "!!!");
		if(unitSelected == true && Physics.Raycast(ray, hit, 1000))
		{
			currentUnit.transform.position = getCoords;
			print("Moved!");
		}
		
		if(Physics.Raycast(ray, hit, 1000))
		{
			currentUnit = hit.transform;
			getCoords = Vector3(Mathf.Round(hit.point.x), Mathf.Round(hit.point.y), Mathf.Round(hit.point.z));
			print(getCoords);
			
			if(currentUnit != null  && currentUnit.tag == "Player 1")
			{
				print(currentUnit);
				unitSelected = true;
			}
		}
	}
}

Can’t seem to understand this. The NullRef is on line 22, I’m guessing currentUnit or getCoords is the culprit here. It is supposed to move the unit to the coordinates of a plane when the player clicks a 2nd time. I’m lost here…

2

I think the problem is RaycastHit – you never actually set hit to be anything, but then you try to access hit.transform.