error CS1002: ; expected

Hello I think this may seem obvious. I am trying to create an audio player in unity following this tutorial

but I keep getting this message what am I missing
Assets/AudioManager.cs(48,15): error CS1002: ; expected

line 48 is
yeild return null;
I am using unity 2019.3.13f1

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. using UnityEngine.UI;
6. using UnityEngine.Audio;
7.  
8. [RequireComponent(typeof(AudioSource))]
9.  
10. public class AudioManager : MonoBehaviour
11. {
12.  
13.   public AudioClip[] muiscClips;
14.   private int currentTrack;
15.   private AudioSource source;
16.  
17.  
18.     // Start is called before the first frame update
19.     void Start()
20.     {
21.       source = GetComponent<AudioSource>();
22.  
23.       //play music
24.       PlayMusic();
25.  
26.  
27.     }
28.  
29.     public void PlayMusic()
30.     {
31.       if (source.isPlaying)
32.       {
33.         return;
34.       }
35.  
36.       currentTrack--;
37.       if (currentTrack < 0)
38.       {
39.         currentTrack = musicClips.Length - 1;
40.       }
41.       StartCoroutine(WaitForMusicEnd());
42.     }
43.  
44.     IEnumerator WaitForMusicEnd()
45.     {
46.       while(source.isPlaying)
47.       {
48.         yeild return null;
49.       }
50.       NextTitle();
51.  
52.     }
53.  
54.     public void NextTitle()
55.     {
56.       source.Stop();
57.       currentTrack++;
58.       if(currentTrack > musicClips.Length -1)
59.       {
60.         currentTrack = 0;
61.       }
62.  
63.       source.clip = musicClips[currentTrack];
64.       source.Play();
65.  
66.       //show title
67.  
68.       StartCoroutine(WaitForMusicEnd());
69.  
70.     }
71. }
72.  

 

You spelled Yield wrong,

Code (CSharp):

1. yield return null;

Just copy that into line 48

 

thank you! its always the obvious mistakes