GetComponent<>() function error

[LiquidLemon]

I have a little problem with the GetComponent<>() function. I’m using it to access a variable from another script. But when I try to access it this error pops out:
“NullReferenceException: Object reference not set to an instance of an object
EnemyController.OnCollisionEnter2D (UnityEngine.Collision2D coll) (atAssets/Scripts/EnemyController.cs:24)”.
Both scripts:

public class EnemyController : MonoBehaviour {

	GameObject GameController;
	ScoreCount scoreCount;
	
	void Start () 
	{
		GameController = GameObject.Find ("GameController");
		scoreCount = GameController.GetComponent<ScoreCount>();
	}

	void OnCollisionEnter2D(Collision2D coll) 
	{
		scoreCount.score += 5;
		Destroy (coll.gameObject);
		Destroy (gameObject);
	}
}

and

public class ScoreCount : MonoBehaviour {

	public int score = 0;

}

The error is about the “scoreCount.score += 5;” line.

Second script has been attached to “GameController” object. It doesn’t do anything yet, but I’d like to have the score variable in it, as the first object gets deleted. It was working earlier, but it seems that I’ve changed something and I can’t figure out what.

[Roland1234]

So you have an object named “GameController” with the EnemyController script attached? Make sure then that the ScoreCount script is also attached to that object because it seems that your getting a null reference from your call to GetComponent.

Add this after GetComponent to verify if that’s the case:

if(scoreCount == null)
{
    Debug.Log("did NOT find scoreCount");
}
else
{
    Debug.Log("found scoreCount");
}

and check your output console for results.

Side note: according to the OnCollisionEnter2D method, you are destroying the “GameController” object on collision with something (since you’ve stated that “GameController” contains the EnemyController script), which seems suspicious to me. But I believe your specific error is simply due to not having added the ScoreCount component to your “GameController” object.