error CS8025 (Parsing Error)

this is my code... can somebody tell me what's wrong? using UnityEngine; using System.Collections;

public class Parallaxing : MonoBehaviour {

 public Transform[] backgrounds;         //Array (list) of all the back- and foregrounds to be parallaxed
 private float[] parallaxScales;         //The proportion of the camera's movement to move the backgrounds by
 public float smoothing = 1f;                // How smooth the parallax is going to be. Make sure to set this above 0.

 private Transform cam;                 //reference to the main cameras transform
 private Vector3 previousCamPos;        //The position of the camera in the previous frame

 //Is called before Start(). Great for references.
 void Awake () {
     //set up camera reference
     cam = Camera.main.transform;}
 
 // Use this for initialization
 void Start () {
     // The previous frame had the current frame's camera position
     previousCamPos = cam.position;

     //assigning coresponding parallaxScales
     parallaxScales = new float[backgrounds.Length];
     for (int i = 0; i < backgrounds.Length; i++) {
         parallaxScales[i] = backgrounds[i].position.z*-1;
     }
 }
 
 // Update is called once per frame
 void Update () {
     
  //for each background
     for (int i = 0; i < backgrounds.Length; i++) {
                 //the parallax is the opposite of the camera movement because the previous frame multiplied by the scale
         float parallax = (previousCamPos.x - cam.position.x) * parallaxScales[i];
     // set a target x position which is the current position plus the parallax
     float backgroundTargetPosX = backgrounds[i].position.x + parallax;

     //create a target position which is the background's current position with it's target x position/
     Vector3 backgroundTargetPos = new Vector3 (backgroundTargetPosX, backgrounds[i].position.y, backgrounds[i].position.z);

     //fade between current position and the target position using lerp
         backgrounds[i].position = Vector3.Lerp (backgrounds[i].position, backgroundTargetPos, smoothing * Time.deltaTime);



         //set the previousCamPos to the camera's position at the end of the frame
         previousCamPos = cam.position;

     }