[SOLVED] problem with skyboxes in unity 2017

I found the solution.

it was just a problem of the new hierarchy(?) of getting the components.

The texture type of the image that you want to scroll must be set as default and the wrap mode must be set as repeat. Then you must create a quad and attach the image to it. Then attach a c# script to the quad that looks like this.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class BackgroundScrolling : MonoBehaviour {
 
     public float speedX;
     public float speedY;
     private Renderer myRenderer;
 
     // Use this for initialization
     void Start () 
     {
         myRenderer = this.GetComponent<Renderer> (); 
     }
     
     // Update is called once per frame
     void Update () 
     {
         Vector2 offset = new Vector2 (Time.time * speedX, Time.time * speedY);
         myRenderer.material.mainTextureOffset = offset;
     }
 }