Ругается Unity, помогити

Пишет ошибку Assets\Scripts\Selection.cs(6,14): error CS0101: The namespace '<global namespace>' already contains a definition for 'SelectController'

Вот код, что тут не так
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SelectController : MonoBehaviour
{

public GameObject cube;
public List<GameObject> players;
public LayerMask layer, LayerMask;
private Camera _cam;
private GameObject _cubeSelection;
private RaycastHit _hit;

private void Awake() {
_cam = GetComponent<Camera>();
}

private void Update()
{
if (Input.GetMouseButtonDown(1) && players.Count > 0)
{
Ray ray = _cam.ScreenPointToRay(Input.mousePosition);

if (Physics.Raycast(ray, out RaycastHit _agentTarget, 1000f, layer))
foreach(var el in players)
el.GetComponent<UnityEngine.AI.NavMeshAgent>().SetDestination(_agentTarget.point);
}

if (Input.GetMouseButtonDown(0))
{
foreach (var el in players)
el.transform.GetChild(0).gameObject.SetActive(false);

players.Clear();

Ray ray = _cam.ScreenPointToRay(Input.mousePosition);

if (Physics.Raycast(ray, out _hit, 1000f, layer))
_cubeSelection = Instantiate(cube, new Vector3(_hit.point.x , 1, _hit.point.z), Quaternion.identity);


}



if(_cubeSelection)
{
Ray ray = _cam.ScreenPointToRay(Input.mousePosition);

if (Physics.Raycast(ray, out RaycastHit hitDrag, 1000f, layer))
{

float xScale = (_hit.point.x - hitDrag.point.x);
float zScale = _hit.point.z - hitDrag.point.z;

if(xScale < 0.0f && zScale < 0.0f)
_cubeSelection.transform.localRotation = Quaternion.Euler(new Vector3(0, 180, 0));
else if(xScale < 0.0f )
_cubeSelection.transform.localRotation = Quaternion.Euler(new Vector3(0, 0, 180));
else if(zScale < 0.0f)
_cubeSelection.transform.localRotation = Quaternion.Euler(new Vector3(180, 0, 0));
else
_cubeSelection.transform.localRotation = Quaternion.Euler(new Vector3(0, 0, 0));


_cubeSelection.transform.localScale = new Vector3(Mathf.Abs(xScale), 1,Mathf.Abs(zScale));
}
}

if (Input.GetMouseButtonUp(0) && _cubeSelection)
{
RaycastHit[] hits = Physics.BoxCastAll(
_cubeSelection.transform.position,
_cubeSelection.transform.localScale,
Vector3.up,
Quaternion.identity,
0,
LayerMask
);

foreach (var el in hits)
{
players.Add(el.transform.gameObject);
el.transform.GetChild(0).gameObject.SetActive(true);
}

Destroy(_cubeSelection);
}

}


}