Need a little help with a while loop

I working on a FSM script.
This is the error:
The body of `FSM_script.Start()' cannot be an iterator block because `void' is not an iterator interface type
When I used the while loop while(true) and at the end of the while loop yield return 0;
I am using Unity 5.6 0n windows 7
I hope some one can help

here the code.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class FSM_script : MonoBehaviour
6. {
7.     public enum State
8.     {
9.         Idle,
10.         Initialize,
11.         Setup,
12.         Actions
13.  
14.     }
15.  
16.     private State _state;  //this is the local variable that reptesents our states
17.  
18.     // Use this for initialization
19.     void Start ()
20.     {
21.         _state = State.Initialize;
22.        
23.         while(true){  
24.             switch (_state)
25.             {
26.  
27.             case State.Initialize:
28.                 InitMe ();
29.  
30.                 break;
31.             case State.Setup:
32.                 break;
33.  
34.             }
35.  
36.             yeild return 0;
37.         }
38.  
39.     }
40.  
41.     private void InitMe()
42.     {
43.         Debug.Log("FSM is Initialized");
44.         _state = State.Setup;
45.  
46.     }
47.  
48.     private void SetMeUp()
49.     {
50.         Debug.Log("this is SetMeUp function");
51.     }
52.  
53. }
54.  

 

Make Start an IEnumerator instead of a void if you want Unity to treat it as a coroutine.

Also, do you have a particular reason for using such an old version of Unity?

 

I will look up IEnumerator and see how to use it. I have dial up type service. It will take a day or more to download a newer one.

 

semicolon does not help

 

Yeah.. Had a confused moment and didn't hit delete fast enough. Sorry about that

 

No problem I am 75, I have a lot of confused moments

 

ok I looked it up
what I understand is use IEnumerator like this IEnumerator Start ()

Now do I have to use it on all my function?

 

Should your class be inheriting from monobehavior?

 

I am using a tut.

.
I will check your site out. Well I can see this is a not getting me any place
I will go look for another tut. It worked on his computer.
Thank you all for your help.

 

Cool. I didn't know about using event hooks as IEnumerators like that.

If you double check the tutorial from 10:33 it should help.

Spoiler

I got your code to work by changing two lines:

19. IEnumerator Start()
36. yield return 0;

 

I am going to download some more tut. I will make me a great FSM

 

Domino did you get it to work???

 

Yes, I posted the changes in the spoiler in my previous comment.

 

Ok, guys I found the problems, I have more than one. My eyes are not as good as they use to be.
I got it working up to this point
Thank you all
Renny

 

I did not see the spoiler. must be something new.

 

Well the deed is done, I got the FSM working just like it should be working
WOW!!!!!!
Thanks