Cannot convert "void" to "float"

Cannot convert void to float.(27, 17): error CS0029

Code (CSharp):

1. public class PlayerController : MonoBehaviour {
2.  
3.     public float PlayerSpeed;
4.     public float PlayerJumpHeight;
5.  
6.     private float rotation;
7.  
8.     public int PlayerHealth;
9.  
10.     public bool IsFalling = true;
11.  
12.     private Rigidbody rb;
13.  
14.     // Use this for initialization
15.     void Start ()
16.     {
17.         rb = GetComponent<Rigidbody> ();
18.     }
19.  
20.     // Update is called once per frame
21.     void Update ()
22.     {
23.         rotation = rb.AddForce (new Vector3(Input.GetAxis("Horizontal"),0,0) * PlayerSpeed);
24.         rotation *= Time.deltaTime;
25.         rb.AddRelativeTorque (Vector3.back * rotation);
26.  
27.         if (Input.GetKeyDown(KeyCode.UpArrow) && IsFalling == false)
28.         {
29.             rb.velocity = new Vector3 (0, PlayerJumpHeight, 0);
30.         }
31.     }
32.  

)

 

When you are calling rb.AddForce, what are you expecting to be returned? That method call doesn't return anything, it just does what you tell it (adds a force).

https://docs.unity3d.com/ScriptReference/Rigidbody.AddForce.html

 

ok, I realized my mistake. Thanks for your help!