C# Camera.main.GetComponent: Unknown Word SmoothFollow

I am trying to access the SmoothFollow Component on the Main Camera to modify the target in a script. The SmoothFollow Keyword is not defined in the monodevelop text editor.

Do I need to import anything to gain access to components?

Script.cs

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;


 public class GameManager : MonoBehaviour 
 {
     // Use this for initialization
     void Start () 
     { }
     
     // Update is called once per frame
     void Update () 
     {
                     // Error Here: SmoothFollow.target
         Camera.main.GetComponent<SmoothFollow>.target = transform;
     }

 }