Cannot instantiate objects with a parent which is persistent.

So I'm trying to instantiate some objects and put them as childs of some other transforms. The parents are empty objects on the hierarchy that have no parent(the scene is the parent). The Game Objects I'm trying to instantiate are prefabs that I have stored in the Resources folder.

Code (CSharp):

1.  public void CreatePlayer(int playerNumber=0)
2.     {
3.         if (!offline)
4.         {
5.             playerNum++;
6.         }
7.         PlayerMovement newPlayer = Instantiate(playerPrefab,Vector3.zero,Quaternion.identity,playersParent).GetComponent<PlayerMovement>();
8.         GameObject newPlayerCanvas = Instantiate(playerCanvasPrefab, playersCanvasParent);
9.         CameraController newPlayerCamera = Instantiate(playerCameraPrefab, playersCamerasParent).GetComponent<CameraController>();
10.         Camera newPlayerUICamera = Instantiate(playerUICameraPrefab, playersUICamerasParent).GetComponent<Camera>();
11.  
12.         newPlayer.gameObject.name = "Player";
13.         if (!offline)
14.         {
15.             newPlayer.gameObject.name = newPlayer.gameObject.name + playerNum;
16.         }
17.         else
18.         {
19.             newPlayer.gameObject.name = newPlayer.gameObject.name + playerNumber;
20.         }
21.  
22.         //Player
23.         newPlayer.myCamera = newPlayerCamera;
24.         newPlayer.myPlayerHUD = newPlayerCanvas.GetComponent<PlayerHUD>();
25.         //Canvas
26.         newPlayerCanvas.GetComponent<Canvas>().worldCamera = newPlayerUICamera;
27.         //CameraBase
28.         newPlayerCamera.myPlayerMov = newPlayer;
29.         newPlayerCamera.myPlayer = newPlayer.transform;
30.         newPlayerCamera.cameraFollowObj = newPlayer.cameraFollow;
31.  
32.         for (int i=0; i < allPlayers.Length; i++)
33.         {
34.             if (allPlayers[i] == null)
35.             {
36.                 allPlayers[i] = newPlayer;
37.                 allCanvas[i] = newPlayerCanvas;
38.                 allCameraBases[i] = newPlayerCamera;
39.                 allUICameras[i] = newPlayerUICamera;
40.                 return;
41.             }
42.         }
43.     }

The error is with the Instantiate lines:

Cannot instantiate objects with a parent which is persistent. New object will be created without a parent.
UnityEngine.Object:Instantiate(GameObject, Vector3, Quaternion, Transform)

The problem persists even using different overloads of the Instantiate method, like I'm using.

I can't understand what does it mean with persistent parent, since the parents I'm giving them are just normal empty objects. Maybe the problem is with the prefab I'm giving?

Edit: Solved, I was asisgning the prefabs as parents and not the objects inside the scene, silly me.

 

Quick update: The parents are prefabs. I tried using non prefab empty objects and it worked. Why?

 

Another update: just now I figured out I was asigning the prefabs, and not the objects in the scene, as parents. Of course it didn't work. Solved.

 

Check how you have instantiated the parent object?

 

Can You tell me the way, how did you find the instantiated object in the scene and not the prefab. I have just started Unity and cant find a way to get the current gameObject through the script. It always refers to the prefab instead of the object in the scene.
Would appreciate a lot for the answer.

 

Late reply but I stumbled across this thread while looking for a solution myself and will post a solution for anyone in the future who might need it.

when you instantiate an object via script, you can get a reference of the instance.

GameObject go = Instantiate(prefab);

then when instantiating a child to that, you would call

Instantiate(childPrefab,go.transform);

instead of

Instantiate(childPrefab, prefab.transform);

EDIT (For clarification):
You want to make sure that when you're referring to the instance, it's the spawned instance

 go 

and not the unspawned prefab

 prefab 

 

This helped a bunch thanks! (not OP but had the same issue)

 

Sorry to necro, but for anyone that finds this, just because the above reply isn't 100% clear(i didnt really get it, i figured it out on my own haha), the issue, for me anyway, was I was setting the object to a child of the UNSPAWNED object. AKA, the prefab itself, rather than the spawned gameobject

Edit: Realized i wasn't super clear in my clarification lol, so i added a bit extra.

 

I'm sorry my self reply was not clear enough, thank everybody for clarifying this.