3rd person controller script(0 exp on coding and game dev)

Hey guys, I kinda need help on this. I'm following a tutorial on youtube by the name of @Sebastian Lague this is his script on the 3rd person controls:-

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class Playercontroller : MonoBehaviour
6. {
7.     public float walkSpeed = 2;
8.     public float runSpeed = 6;
9.  
10.     Animator animator;
11.  
12.  
13.     // Start is called before the first frame update
14.     void Start()
15.     {
16.         animator = GetComponent<Animator>();
17.     }
18.  
19.     // Update is called once per frame
20.     void Update()
21.     {
22.         Vector2 input = new Vector2(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"));
23.         Vector2 inputDir = input.normalized;
24.  
25.         if (inputDir != Vector2.zero)
26.         {
27.             transform.eulerAngles = Vector3.up * Mathf.Atan2(inputDir.x, inputDir.y) * Mathf.Rad2Deg;
28.         }
29.  
30.         bool running = Input.GetKey(KeyCode.LeftShift);
31.         float speed = ((running) ? runSpeed : walkSpeed) * inputDir.magnitude;
32.  
33.         transform.Translate(transform.forward * speed * Time.deltaTime, Space.World);
34.  
35.         float animationSpeedPercent = ((running) ? 1 : .5f) * inputDir.magnitude;
36.         animator.SetFloat ("speedPercent", animationSpeedPercent);
37.  
38.         }
39. }
40.  

so the problem is this line here :-

Code (CSharp):

1. animator.SetFloat ("speedPercent", animationSpeedPercent);
2.  

and unity shows this error :

Thanks for the help.

 

The problem is animator is not instantiated (with the new keyword), nor assigned to any pre-existing instance (have a look at the topic of instantiation in C#).

In Start(), GetComponent<Animator>() is called to find an instance of Animator as a component in the GameObject your script is attached to, and fails. You probably forgot to add an Animator component in the Inspector.

I hope all of that made sense. Good luck!

 

that probably make sense. thanks fellow dev.!