Question on RigidBody velocity from Space Shooter tutorial

The first coding step in the tutorial says to write this code, but when I do, RigidBody does not contain any velocity components. However, when I look at the RigidBody declaration, it's full of velocity parameters. Anyone know why this is?

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour
{
void FixedUpdate()
{
float moveHorizontal = Input.GetAxis ("Horizontal");
float moveVertical = Input.GetAxis ("Vertical");


Rigidbody.velocity

}
}

 

I figured it out. Need to call GetComponent<Rigidbody>().velocity for some reason. Doesn't work without GetComponent.

 

Yes. This is a change between Unity 4 and Unity 5. This reference should be cached for best performance.

There is an official thread in the sticky section of this section.

(P.S.: please format your code!)

 

I'm a complete novice and I'm following exact same steps but getting another error:

MissingComponentException: There is no 'Rigidbody' attached to the "Main Camera" game object, but a script is trying to access it.
You probably need to add a Rigidbody to the game object "Main Camera". Or your script needs to check if the component is attached before using it.
UnityEngine.Rigidbody.set_velocity (Vector3 value)
PlayerController.FixedUpdate () (at Assets/Scripts/PlayerController.cs:12)

------
Please note that I have only one Rigidbody component, and it is attached to the "Player" game object.
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my code is
------

using UnityEngine;
using System.Collections;
public class PlayerController : MonoBehaviour
{
void FixedUpdate()
{
float moveHorizontal = Input.GetAxis ("Horizontal");
float moveVertical = Input.GetAxis ("Vertical");
Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);
GetComponent<Rigidbody>().velocity = movement;
}
}

-------

Please help.

 

That error says you are trying to access a Rigidbody on the camera component? Is the script on the wrong GameObject? Shouldn't this be on the player GameObject?

For more information on this project, please use the official thread:
http://forum.unity3d.com/threads/space-shooter-tutorial-q-a.313899

(P.S.: Please learn to format your code!)