A game object can only be in one layer. The layer needs to be in the range [0...31] (791004)

Unity Engine
1

Hi there, I am making a multiplayer FPS with Mirror.
I am following an old Brackeys tutorial, changing the obselete HLAP to Mirror.

Here is my player prefab window:


https://imgur.com/a/Wi6iyiI

On both the client and the host side, I keep getting this message:

(Filename: C:/Users/Useraname/OneDrive/Documents/MultiplayerFPS/Assets/Mirror/Runtime/Transport/Telepathy/Server.cs Line: 82)

A game object can only be in one layer. The layer needs to be in the range [0…31]
UnityEngine.GameObject:set_layer(Int32)
PlayerSetup:AssignRemoteLayer() (at C:\Users*Username*\OneDrive\Documents\MultiplayerFPS\Assets\Scripts\PlayerSetup.cs:50)
PlayerSetup:Start() (at C:\Users*Username*\OneDrive\Documents\MultiplayerFPS\Assets\Scripts\PlayerSetup.cs:24)

This is PlayerSetup.cs:

//-------------------------------------
// Responsible for setting up the player.
// This includes adding/removing him correctly on the network.
//-------------------------------------
using UnityEngine;
using Mirror;

[RequireComponent(typeof(Player))]
public class PlayerSetup : NetworkBehaviour
{

    [SerializeField]
    Behaviour[] componentsToDisable;
    [SerializeField]
    string remoteLayerName = "RemotePlayer";
    Camera sceneCamera;
    void Start()
    {
        // Disable components that should only be
        // active on the player that we control
        if (!isLocalPlayer)
        {
            DisableComponents();
            AssignRemoteLayer();
        }
        else
        {
            // We are the local player: Disable the scene camera
            sceneCamera = Camera.main;
            if (sceneCamera != null)
            {
                sceneCamera.gameObject.SetActive(false);
            }
        }
    }

    public override void OnStartClient()
    {
        base.OnStartClient();

        string _netID = GetComponent<NetworkIdentity>().netId.ToString();
        Player _player = GetComponent<Player>();

        GameManager.RegisterPlayer(_netID, _player);
    }


    void AssignRemoteLayer()
    {
        gameObject.layer = LayerMask.NameToLayer(remoteLayerName);
    }
 
    void DisableComponents()
    {
        for (int i = 0; i < componentsToDisable.Length; i++)
            {
                componentsToDisable[i].enabled = false;
            }
    }

    // When we are destroyed
    void OnDisable()
    {
        // Re-enable the scene camera
        if (sceneCamera != null)
        {
            sceneCamera.gameObject.SetActive(true);
        }

        GameManager.UnRegisterPlayer(transform.name);
    }
}

My other scripts are attached below:

There is also a short PlayerWeapon.cs script that contains weapon information, however I feel this is irrelevant.

I also can not move on the unity editor. I imagine this is related to this issue, and will be resolved when this issue is.

5852992–621760–GameManager.cs (1.06 KB)
5852992–621763–Player.cs (692 Bytes)
5852992–621766–PlayerController.cs (2.16 KB)
5852992–621769–PlayerMotor.cs (1.87 KB)
5852992–621778–PlayerShoot.cs (959 Bytes)

2

The working imgur link:

[Album] imgur.com
3

Does the “RemotePlayer” layer exists in both project’s settings?
This error often occur while calling a layer from name an unfortunately doesn’t exist in the Project Settings.

4

In the project settings “Tags & Layers” window, both LocalPlayer and RemotePlayer exist as layers, on 8 and 9.

5

Exact same code, exact same error from a 5 years old topic o_o…

6

What does this print?

int layer = LayerMask.NameToLayer(remoteLayerName);
Debug.Log($"Layer I am trying to assign is: {remoteLayerName}:{layer}");
gameObject.layer = layer;
1 Like
7

Actually a bit concerned by the declaration :

 [SerializeField]
    string remoteLayerName = "RemotePlayer";

Who know the variable could be different on request.
Could you log it right before the assignment?

void AssignRemoteLayer()
    {
        Debug.Log(remoteLayerName);
        gameObject.layer = LayerMask.NameToLayer(remoteLayerName);
    }
8

Ah yeah good point. Most likely the string has been changed in the editor or something.

9

I get an error saying 'the name ‘remoteLayerName’ does not exist in the current context

10

Where did you put this code? It should go in AssignRemoteLayer()

11

I put the three lines in AssignRemoteLayer() and it gives me the same error.

As far as I can tell nothing is printed to the console.

    void AssignRemoteLayer()
    {
        int layer = LayerMask.NameToLayer(remoteLayerName);
        Debug.Log($"Layer I am trying to assign is: {remoteLayerName}:{layer}");
        gameObject.layer = layer;
    }
12

Your code before was already using the variable “remoteLayerName” in that spot, so you must have changed something else in the interim to get that error now.

13

Brackeys !