error CS0111 (help)

i have this error in my code and i dont know what to do about it please help:

Assets\scripts\controller\Movement.cs(17,10): error CS0111: Type 'Movement' already defines a member called 'Start' with the same parameter types

Code (csharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class Movement : MonoBehaviour
7. {
8.     float Speed;
9.  
10.     public Rigidbody rb;
11.     public bool PlayerOnGround = true;
12.  
13.     private void Start()
14.     {
15.         rb = GetComponent<Rigidbody>();
16.     }
17.     // Start is called before the first frame update
18.     void Start()
19.     {
20.         Speed = 5;
21.     }
22.  
23.     // Update is called once per frame
24.     void Update()
25.     {
26.         transform.Translate(Input.GetAxis("Horizontal") * Time.deltaTime * Speed, 0, Input.GetAxis("Vertical") * Time.deltaTime * Speed);
27.  
28.         if(Input.GetKey(KeyCode.UpArrow)) {
29.             transform.Translate(5, 0, 10 * Time.deltaTime);
30.         }
31.         if(Input.GetKey(KeyCode.DownArrow)) {
32.             transform.Translate(5, 0, -10 * Time.deltaTime);
33.         }
34.         if(Input.GetKey(KeyCode.LeftArrow)) {
35.             transform.Translate(-10 * Time.deltaTime, 0, 0);
36.         }
37.         if(Input.GetKey(KeyCode.RightArrow)) {
38.             transform.Translate(10 * Time.deltaTime, 0, 0);
39.         }
40.         if(Input.GetButtonDown("w")) {
41.             if(Input.GetButtonDown("left shift")){
42.                 transform.Translate(10 * Time.deltaTime * 3f, 0, 0);
43.             }
44.            
45.         }
46.        
47.         if(Input.GetButtonDown("jump") && PlayerOnGround)
48.         {
49.             rb.AddForce(new Vector3(0, 5, 0), ForceMode.Impulse);
50.             PlayerOnGround = false;
51.         }
52.     }
53.  
54.     private void OnCollisionEnter(Collision collision)
55.     {
56.         if(collisionn.gameObject.tag == "ground")
57.         {
58.             PlayerOnGround = true;
59.         }
60.     }
61. }
62.  
63. [code]

 

you have 2x the same function

Code (CSharp):

1.     private void Start()
2.     {
3.         rb = GetComponent<Rigidbody>();
4.     }
5.     // Start is called before the first frame update
6.     void Start()
7.     {
8.         Speed = 5;
9.     }
10.  

change it to:

Code (CSharp):

1. private void Start()
2.     {
3.         rb = GetComponent<Rigidbody>();
4.         Speed = 5;
5.     }

 

thank you