error CS0120: An object reference is required to access non-static member

I have a problem with the error CS0120 : An object reference is required to access non- static member , could someone help me with it?

Blockquote

   using UnityEngine;
   using System.Collections;

    public class PlayerBehaviour : MonoBehaviour {

public Transform mesh;
public float forceFly;
private Animator animatorPlayer;

private float currentTimeToAnim;
private bool inAnim;

// Use this for initialization
void Start () {
	animatorPlayer = mesh.GetComponent<Animator> ();
}

// Update is called once per frame
void Update () {

	if (Input.GetMouseButtonDown (0)) {
		
		inAnim = true;

		Rigidbody2D.AddForce (new Vector2 (0, 1) * forceFly);

	}

	if(inAnim){
		currentTimeToAnim += Time.deltaTime;

		if(currentTimeToAnim > 0.4f){
			currentTimeToAnim = 0;
			inAnim = false;

		}
	}

	animatorPlayer.SetBool("callfly", inAnim);

   }
}

GetComponent().AddForce (new Vector2 (0, 1) * forceFly);
try this