I am attempting to create coins in my 2D game

I am using the prefab by unity technologies from the asset store for my 2d character (it is called "character robot boy" from the "standard assets" package). I am new to coding (scratch that, COMPLETE noob) but decided to attempt to make some coins in my 2d game. After some Google searches I found a tutorial, and added some code (the code at the very bottom) to my character script. Unfortunately, it has given me multiple errors. I noticed that when coding, visual studio said "Destroy" does not exist in the current context. Then when I try to run my game it says "all compiler errors have to be fixed before entering play mode." When I look at the inspector for my character (robot boy prefab), the two scripts with it say they cannot be loaded, and that I need to fix compiler errors and assign valid scripts.

Code (CSharp):

1. using System;
2. using UnityEngine;
3.  
4. namespace UnityStandardAssets._2D
5. {
6.     public class PlatformerCharacter2D : MonoBehaviour
7.     {
8.         [SerializeField] private float m_MaxSpeed = 10f;                    // The fastest the player can travel in the x axis.
9.         [SerializeField] private float m_JumpForce = 400f;                  // Amount of force added when the player jumps.
10.         [Range(0, 1)] [SerializeField] private float m_CrouchSpeed = .36f;  // Amount of maxSpeed applied to crouching movement. 1 = 100%
11.         [SerializeField] private bool m_AirControl = false;                 // Whether or not a player can steer while jumping;
12.         [SerializeField] private LayerMask m_WhatIsGround;                  // A mask determining what is ground to the character
13.  
14.         private Transform m_GroundCheck;    // A position marking where to check if the player is grounded.
15.         const float k_GroundedRadius = .2f; // Radius of the overlap circle to determine if grounded
16.         private bool m_Grounded;            // Whether or not the player is grounded.
17.         private Transform m_CeilingCheck;   // A position marking where to check for ceilings
18.         const float k_CeilingRadius = .01f; // Radius of the overlap circle to determine if the player can stand up
19.         private Animator m_Anim;            // Reference to the player's animator component.
20.         private Rigidbody2D m_Rigidbody2D;
21.         private bool m_FacingRight = true;  // For determining which way the player is currently facing.
22.  
23.         private void Awake()
24.         {
25.             // Setting up references.
26.             m_GroundCheck = transform.Find("GroundCheck");
27.             m_CeilingCheck = transform.Find("CeilingCheck");
28.             m_Anim = GetComponent<Animator>();
29.             m_Rigidbody2D = GetComponent<Rigidbody2D>();
30.         }
31.  
32.  
33.         private void FixedUpdate()
34.         {
35.             m_Grounded = false;
36.  
37.             // The player is grounded if a circlecast to the groundcheck position hits anything designated as ground
38.             // This can be done using layers instead but Sample Assets will not overwrite your project settings.
39.             Collider2D[] colliders = Physics2D.OverlapCircleAll(m_GroundCheck.position, k_GroundedRadius, m_WhatIsGround);
40.             for (int i = 0; i < colliders.Length; i++)
41.             {
42.                 if (colliders[i].gameObject != gameObject)
43.                     m_Grounded = true;
44.             }
45.             m_Anim.SetBool("Ground", m_Grounded);
46.  
47.             // Set the vertical animation
48.             m_Anim.SetFloat("vSpeed", m_Rigidbody2D.velocity.y);
49.         }
50.  
51.  
52.         public void Move(float move, bool crouch, bool jump)
53.         {
54.             // If crouching, check to see if the character can stand up
55.             if (!crouch && m_Anim.GetBool("Crouch"))
56.             {
57.                 // If the character has a ceiling preventing them from standing up, keep them crouching
58.                 if (Physics2D.OverlapCircle(m_CeilingCheck.position, k_CeilingRadius, m_WhatIsGround))
59.                 {
60.                     crouch = true;
61.                 }
62.             }
63.  
64.             // Set whether or not the character is crouching in the animator
65.             m_Anim.SetBool("Crouch", crouch);
66.  
67.             //only control the player if grounded or airControl is turned on
68.             if (m_Grounded || m_AirControl)
69.             {
70.                 // Reduce the speed if crouching by the crouchSpeed multiplier
71.                 move = (crouch ? move*m_CrouchSpeed : move);
72.  
73.                 // The Speed animator parameter is set to the absolute value of the horizontal input.
74.                 m_Anim.SetFloat("Speed", Mathf.Abs(move));
75.  
76.                 // Move the character
77.                 m_Rigidbody2D.velocity = new Vector2(move*m_MaxSpeed, m_Rigidbody2D.velocity.y);
78.  
79.                 // If the input is moving the player right and the player is facing left...
80.                 if (move > 0 && !m_FacingRight)
81.                 {
82.                     // ... flip the player.
83.                     Flip();
84.                 }
85.                     // Otherwise if the input is moving the player left and the player is facing right...
86.                 else if (move < 0 && m_FacingRight)
87.                 {
88.                     // ... flip the player.
89.                     Flip();
90.                 }
91.             }
92.             // If the player should jump...
93.             if (m_Grounded && jump && m_Anim.GetBool("Ground"))
94.             {
95.                 // Add a vertical force to the player.
96.                 m_Grounded = false;
97.                 m_Anim.SetBool("Ground", false);
98.                 m_Rigidbody2D.AddForce(new Vector2(0f, m_JumpForce));
99.             }
100.         }
101.  
102.  
103.         private void Flip()
104.         {
105.             // Switch the way the player is labelled as facing.
106.             m_FacingRight = !m_FacingRight;
107.  
108.             // Multiply the player's x local scale by -1.
109.             Vector3 theScale = transform.localScale;
110.             theScale.x *= -1;
111.             transform.localScale = theScale;
112.         }
113.     }
114.  
115.  
116. private void onTriggerEnter2D(Collider2D other)
117.     {
118.         if(other.gameObject.CompareTag("coins"))
119.         {
120.             Destroy(other.gameObject);
121.         }
122.     }
123.  
124.  
125.  
126.  
127.  
128. }
129.  

 

Looks like you've implemented your onTriggerEnter2D method outside the class. Delete the closed bracket } on line 113 and it should work.

 

Thanks I'm honestly a complete idiot when it comes to coding. Unfortunately, it still won't run. It says I have a compiler error. Don't know what that is.