Invalid token 'in' class, struct, or interface member declaration Problem

Hello I am having a problem since changing an old command (Rigidbody.rigidbody) for a new updated one( UnityEngine.Component.Rigidbody.rigidbody;) I am getting these Invaild Token Errors The script looks OK except for this one error I can't solve can someone please help?

 using UnityEngine;
 using System.Collections;
 
 [RequireComponent (typeof (GravityBody))]
 public class FirstPersonHoverTank : MonoBehaviour {
     
     // public vars
     public float mouseSensitivityX = 250;
     public float mouseSensitivityY = 250;
     public float hoverSpeed = 20;
     public float jumpForce = 1000f;
     public float hoverForce = 65f;
     public float hoverHeight = 3.5f;
     public LayerMask groundedMask;
     
     // System vars
     bool grounded;
     Vector3 moveAmount;
     Vector3 smoothMoveVelocity;
     float verticalLookRotation;
     Transform cameraTransform;
     UnityEngine.Component.Rigidbody.rigidbody;
     
     
     void Awake() {
         Screen.lockCursor = true;
         cameraTransform = Camera.main.transform;
         rigidbody = GetComponent<Rigidbody> ();
     }
     
     void Update() {
         
         // Look rotation:
         transform.Rotate(Vector3.up * Input.GetAxis("Mouse X") * mouseSensitivityX * Time.deltaTime);
         verticalLookRotation += Input.GetAxis("Mouse Y") * mouseSensitivityY * Time.deltaTime;
         verticalLookRotation = Mathf.Clamp(verticalLookRotation,-60,60);
         cameraTransform.localEulerAngles = Vector3.left * verticalLookRotation;
         
         // Calculate movement:
         float inputX = Input.GetAxisRaw("Horizontal");
         float inputY = Input.GetAxisRaw("Vertical");
         
         Vector3 moveDir = new Vector3(inputX,0, inputY).normalized;
         Vector3 targetMoveAmount = moveDir * walkSpeed;
         moveAmount = Vector3.SmoothDamp(moveAmount,targetMoveAmount,ref smoothMoveVelocity,.15f);
         
         // Jump
         if (Input.GetButtonDown("Jump")) {
             if (grounded) {
                 rigidbody.AddForce(transform.up * jumpForce);
             }
         }
         
         // Grounded check
         Ray ray = new Ray(transform.position, -transform.up);
         RaycastHit hit;
         
         if (Physics.Raycast(ray, out hit, 1 + .1f, groundedMask)) {
             grounded = true;
         }
         else {
             grounded = false;
         }
         
     }
     
     void FixedUpdate() {
         // Apply movement to rigidbody
         Vector3 localMove = transform.TransformDirection(moveAmount) * Time.fixedDeltaTime;
         rigidbody.MovePosition(rigidbody.position + localMove);
     }
 }