title: Why it says expected ',' but i don't see why to use it
body: <blockquote>
  <p>I tried to make this
  tutorial:<a href="https://www.youtube.com/watch?v=QGDeafTx5ug" rel="nofollow noreferrer">https://www.youtube.com/watch?v=QGDeafTx5ug</a>, on player
  movement 2d and i get this errors:  Assets\PlayerController.cs(51,37):
  error CS1001: Identifier expected Assets\PlayerController.cs(51,37):
  error CS1003: Syntax error, ',' expected
  Assets\PlayerController.cs(54,44): error CS1001: Identifier expected
  Assets\PlayerController.cs(54,44): error CS1003: Syntax error, ','
  expected</p>
  </blockquote>
  <pre><code> using System.Collections;
      using System.Collections.Generic;
      using UnityEngine;
      
      public class PlayerController : MonoBehaviour
      {
          public float speed;
          public float jumpForce;
          private float moveInput;
      
          private Rigidbody2D rb;
      
          private bool facingRight = true;
      
      
          private bool isGrounded;
          public Transform groundCheck;
          public float checkRadius;
          public LayerMask whatIsGround;
      
          private int extraJumps;
          public int extraJumpsValue;
      
      
          void Start()
          {
              extraJumps = extraJumpsValue;
              rb = GetComponent&lt;Rigidbody2D&gt;();
          }
          void FixedUpdate()
          {
              isGrounded = Physics2D.OverlapCircle(groundCheck.position, checkRadius, whatIsGround);
      
              moveInput = Input.GetAxisRaw(&quot;Horizontal&quot;);
              Debug.Log(moveInput);
              rb.velocity = new  Vector2(moveInput * speed, rb.velocity.y);
      
              if(facingRight == false &amp;&amp; moveInput &gt; 0){
                  Flip();
              } else if(facingRight == true &amp;&amp; moveInput &lt; 0){
                  Flip();
              }
          }
          
          void Update()
          {
              if(isGrounded == true){
                   extraJumps = extraJumpsValue;
              }
      
              if(Input.GetKeyDown(KeyCode.&quot;W&quot;) &amp;&amp; extraJumps &gt; 0){
                  rb.velocity = Vector2.up * jumpForce;
                  extraJumps--;
              } else if(Input.GetKeyDown(KeyCode.&quot;w&quot;) &amp;&amp; extraJumps == 0 &amp;&amp; isGrounded == true){
                  rb.velocity = Vector2.up * jumpForce;
              }
                  
          }
      
          void Flip()
          {
              facingRight = !facingRight;
              Vector3 Scaler = transform.localScale;
              Scaler.x *= -1;
              transform.localScale = Scaler;
          }
      
      }
  </code></pre>