c# Unexpected symbol 'foreach'

Assets/script/targeting.cs(22,31): error CS1525: Unexpected symbol foreach' I am writing a script to target monster in my game. But i ran across this problem that i just cant seem to find a solution to! Here have a look at the code.. using UnityEngine; using System.Collections; using System.Collections.Generic;

public class targeting : MonoBehaviour { public List targets; private Transform selectedTarget;

 // Use this for initialization
 void Start () {
     targets = new List<Transform>();
     selectedTarget = null;
     
     AddAllEnemies();
 
 }
 
 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 TargetEnemy()
 {
     selectedTarget = targets[0];
 }
 
 // Update is called once per frame
 void Update () {
     if(Input.GetKeyDown(KeyCode.Tab))
     {
         TargetEnemy();
     }
 }

} `

hence the part where it give me unexpected symbol is "foreach(GameObject enemy in go)" i had already set up what go mean.. just the foreach part that unity is having trouble with.