IEnumerator seems not to be recognized by the editor

I am using WaitForSeconds to dissapear an object and then to make it visible again and I noticed that IEnumerator seems not to be recognized in the editor. My code is shown below and, in the editor, the word "IEnumerator" appears in red and when I hover the mouse over it I get a tooltip saying "error CS0103: the name IEnumerator does not exist in the current context". However, the code runs fine. I thought that I had missed a using statement but "using System.Collections" is included and it seems IEnumerator is part of such a namespace. I use the default Mono Develop Unity3D editor. I will very much appreciate your comments.

Code (csharp):

1.  
2. IEnumerator RespawnWaitTime()
3.     {
4.         this.renderer.enabled = false;
5.         // respawnWaitTime has been instanciated in advanced.
6.         yield return respawnWaitTime;
7.         this.renderer.enabled = true;
8.     }
9.  

 

You need to add the following line at the top of your script:

Code (csharp):

1.  
2. using System.Collections;
3.  

 

That line is in my code already. There are 2 using statements at the beginning of my code as follows:

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4.  

 

Can you post the whole script?

 

Here is the complete code. In my editor the word "IEnumerator" appears in red and also, when I hover the mouse over it I see a tooltip with the following text: "error CS0103: the name IEnumerator does not exist in the current context". Nevertheless, the code executes correctly without any run-time error.

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4.  
5. public class scriptEnemy : MonoBehaviour {
6.     // ------------------------------
7.     // Public variables.
8.     // ------------------------------
9.     public int intNumberOfClicks = 2;
10.     WaitForSeconds fltRespawnWaitTime = new WaitForSeconds(2);
11.     public Color[] shapeColor = new Color[5];
12.     public Transform explosion;
13.  
14.     // ------------------------------
15.     // Private variables.
16.     // ------------------------------
17.  
18.     // -----------------------------------------------------------------------------------------
19.     // Use this for initialization
20.     // -----------------------------------------------------------------------------------------
21.     void Start () {
22.     }
23.  
24.     // -----------------------------------------------------------------------------------------
25.     // Update is called once per frame
26.     // -----------------------------------------------------------------------------------------
27.     void Update () {
28.         if (intNumberOfClicks <= 0)
29.         {
30.             if (explosion)
31.             {
32.                 this.Instantiate(explosion, transform.position, transform.rotation);
33.             }
34.             Vector3 v3Position = new Vector3(Random.Range(-4.8f, 4.8f), Random.Range(-3.5f, 3.5f), 0.0f);
35.             StartCoroutine(RespawnWaitTime());
36.             transform.position = v3Position;
37.             intNumberOfClicks = 2;
38.         }
39.     }
40.  
41.     // -----------------------------------------------------------------------------------------
42.     // Hide the object for an amount of time and then unhide it.
43.     // -----------------------------------------------------------------------------------------
44.     IEnumerator RespawnWaitTime()
45.     {
46.         this.renderer.enabled = false;
47.  
48.         // Not a good choice because everytime "new WaitForSeconds(fltRespawnWaitTime)" is executed
49.         // there are 21 bytes of garbage allocation.
50.         // The best practicce is to instanciate it in advance (see Public Variables above).
51.         //yield return new WaitForSeconds(fltRespawnWaitTime);
52.  
53.         yield return fltRespawnWaitTime;
54.         RandomColor ();
55.         this.renderer.enabled = true;
56.     }
57.  
58.     // -----------------------------------------------------------------------------------------
59.     // Changes the color of an object randomly.
60.     // -----------------------------------------------------------------------------------------
61.     void RandomColor()
62.     {
63.             int newColor = Random.Range (0, 4);
64.             renderer.material.color = shapeColor [newColor];
65.     }
66. }
67.  

 

Using your same script, I do not get the same error. Perhaps build a test project?

 

You've probably solved this by now, but if not, I have had that problem before. I was using the latest .net framework and I went to Programs and Features within control panel (if you're using Windows) and selected the box to also run .net framework 3.5 I think it was.

I then shut down my project after saving, restarted my machine and it worked fine.

 

i have same error like that but i still ignore and it work

 

I'm having this error show up and still able to run the project, still looking into why ManoDevelop is doing this

 

i am suffering same error