Physics Raycast not working

Questions & Answers
1

I am trying to make a code that limits the player’s jumping ability to only when he is on the ground.

Code:

if (Physics.Raycast (transform.position, -Vector3.up, hit)) {
distanceToGround = hit.distance;
}

		     if (Input.GetKeyDown(KeyCode.Space) && (hit.distance <= .5)){
     rb.AddForce(Vector3.up*jumpForce);
			 }

Errors:
The best overloaded method match for ‘UnityEngine.Physics.Raycast(UnityEngine.Vector3, UnityEngne.Verctor3, out UnityEngine.RaycastHit)’ has some invalid arguments

Argument ‘#3’ is missing ‘out’ modifier

2

write “out” infront of hit parameter.