Problem on the name 'vector2' could not be found.

I got stuck on the code vector2.left; the message is ... 'vector2' doesnt exist in the current context i also have used/changed -vector2.right; and new Vector(-1,0); but the character still didnt move

I also got message that 'vektor' is not found.

this is the full script

using System.Collections; using System.Collections.Generic; using UnityEngine; public class NewBehaviourScript : $$anonymous$$onoBehaviour  {     private Rigidbody2D myRigidbody;     // Use this for initialization     void Start ()      {         myRigidbody = GetComponent  ();     }     // Update is called once per frame     void Update ()      {         Handle$$anonymous$$ovement ();     }     private void Handle$$anonymous$$ovement ()     {         myRigidbody.velocity = Vector2.left; //x = -1, y=0;     } }