Im getting this error CS0246

It says this error CS1031: Type expected and i dont know what to do or change so it is okay. Here is my script thanks for the help.

 public class Targetting : MonoBehaviour {
 public List targets;
 private Transform myTransform;
 public Transform selectedTarget;
 
 // Use this for initialization
 void Start () {
 targets = new List();
 selectedTarget = null;
 AddAllEnemies();
 myTransform = transform;
 }
 public void AddAllEnemies()
 {
 GameObject[] go = GameObject.FindGameObjectsWithTag("Enemy");
 foreach(GameObject enemy in go)
 AddTarget(enemy.transform);
 }
 public void AddTarget(Transform enemy) {
 targets.Add(enemy);
 }
 private void SortTargetsByDistance()
 {
 targets.Sort(delegate(Transform t1, Transform t2){
 return(Vector3.Distance(t1.position, myTransform.position).CompareTo(Vector3.Distance(t2.position, myTransform.position)));
 });
 }
 
 private void TargetEnemy()
 {
 if(selectedTarget == null){
 SortTargetsByDistance();
 selectedTarget = targets[0];
 }
 else{
 int index = targets.IndexOf(selectedTarget);
 if(index < targets.Count - 1){
 index++;
 }
 else{
 index = 0;
 }
 DeselectTarget();            
 selectedTarget = targets(index);
 
 }
         SelectTarget();
 }
 private void SelectTarget(){
 selectedTarget.renderer.material.color = Color.red;
         
         PlayerAttack pa = (PlayerAttack)GetComponent("PlayerAttack");
         pa.target = selectedTarget.gameObject;
 }
     
 private void DeselectTarget(){
         
 selectedTarget.renderer.material.color = Color.blue;
         selectedTarget = null;
 }        
 // Update is called once per frame
 void Update () {
 if(Input.GetKeyDown(KeyCode.Tab))
 {
 TargetEnemy();
 }
 }
 
 }