Rigidbody.Addforce not working in Unity 5.4.1

Questions & Answers
1

Hello!
In my game, I’m trying to get my player to jump, and in past games it’s worked, but for some reason now it just won’t do anything. I don’t get any errors, but whenever I press space, nothing happens. Why is this happening? Is it the version of Unity I’m using (5.4.1), or what? I tried looking at the script reference, but there’s not even an example in Javascript.
Here’s my code, if that helps:

#pragma strict
public var jumpSpeed = 10;
function FixedUpdate()
 
{
if (Input.GetKey(KeyCode.Space))
 
{
GetComponent.<Rigidbody>().AddForce(new Vector3(0, jumpSpeed * Time.deltaTime, 0));
}
}
2

make a public rigid body //call it rb
make a public vector 3 // call it force
and were you want to use addforce.
you do
rb.addforce(force);

then in the inspector change the values of the vector 3 and it works

3

public Rigidbody rb;
public Vector3 force;
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {
if (Input.GetKeyDown(KeyCode.Space))
    {
        rb.AddForce(force);
    }
}

}

4

make a public rigidbody and called it rb
then make a public vector 3 call it force
then do rb.addforce(force)
instedad and change the values of the vector 3 in the inspector and add the rigid body to the script