active bool from another script

Hi, i need to change values of scripts from another scripts, this is what i have written.

Code (CSharp):

1. public Score putos;
2.  
3. putos = GetComponent<Score>();
4.  
5. putos.active = true;
6.  

But the console sends me this message:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. Stone.OnTriggerEnter2D (UnityEngine.Collider2D other) (at Assets/Scripts/Mainly/Player/Stone.cs:45)

any idea of what can i do?

 

GetComponent is on the Object that the script exist on.. aka if u want to use GetComponent like that Score needs to be on the object your calling the it on.

 

the script its attached to a game object, and this one its onto the script inspector of the first