2D Platformer Demo Camera Follow script doesn't follow player

Edit : So I got the MinX and Y to work(It limits my camera to where I want it) but the character still just runs offscreen either way. I think it has something to do with the XMargin and YMargin. Here are the values I currently have:

XMargin : 2

YMargin : 2

XSmooth : 2

YSmooth : 2

Max X : 10

Min X : -4

MaxY : 10

MInY : -2

Original Post

Hello I was trying to use the 2D Platformer "Camera Follow" script from Unity's Demo they released but it just doesn't follow the player when assigned to the camera. I set my values up to multiple different numbers and even tried the values in the unity demo but nothing. My player is tagged as "Player" and the script is on the mainCamera in my scene. Has anyone else had this problem and/or gotten it to work? This is the script:

 using UnityEngine;
 using System.Collections;
 
 public class CameraFollow : MonoBehaviour 
 {
     public float xMargin = 1f;        // Distance in the x axis the player can move before the camera follows.
     public float yMargin = 1f;        // Distance in the y axis the player can move before the camera follows.
     public float xSmooth = 8f;        // How smoothly the camera catches up with it's target movement in the x axis.
     public float ySmooth = 8f;        // How smoothly the camera catches up with it's target movement in the y axis.
     public Vector2 maxXAndY;        // The maximum x and y coordinates the camera can have.
     public Vector2 minXAndY;        // The minimum x and y coordinates the camera can have.
 
 
     private Transform player;        // Reference to the player's transform.
 
 
     void Awake ()
     {
         // Setting up the reference.
         player = GameObject.FindGameObjectWithTag("Player").transform;
     }
 
 
     bool CheckXMargin()
     {
         // Returns true if the distance between the camera and the player in the x axis is greater than the x margin.
         return Mathf.Abs(transform.position.x - player.position.x) > xMargin;
     }
 
 
     bool CheckYMargin()
     {
         // Returns true if the distance between the camera and the player in the y axis is greater than the y margin.
         return Mathf.Abs(transform.position.y - player.position.y) > yMargin;
     }
 
 
     void FixedUpdate ()
     {
         TrackPlayer();
     }
     
     
     void TrackPlayer ()
     {
         // By default the target x and y coordinates of the camera are it's current x and y coordinates.
         float targetX = transform.position.x;
         float targetY = transform.position.y;
 
         // If the player has moved beyond the x margin...
         if(CheckXMargin())
             // ... the target x coordinate should be a Lerp between the camera's current x position and the player's current x position.
             targetX = Mathf.Lerp(transform.position.x, player.position.x, xSmooth * Time.deltaTime);
 
         // If the player has moved beyond the y margin...
         if(CheckYMargin())
             // ... the target y coordinate should be a Lerp between the camera's current y position and the player's current y position.
             targetY = Mathf.Lerp(transform.position.y, player.position.y, ySmooth * Time.deltaTime);
 
         // The target x and y coordinates should not be larger than the maximum or smaller than the minimum.
         targetX = Mathf.Clamp(targetX, minXAndY.x, maxXAndY.x);
         targetY = Mathf.Clamp(targetY, minXAndY.y, maxXAndY.y);
 
         // Set the camera's position to the target position with the same z component.
         transform.position = new Vector3(targetX, targetY, transform.position.z);
     }
 }