Assets/SkyAir.cs(13,25): error CS0029: Cannot implicitly convert type `UnityEngine.GameObject[]' to `UnityEngine.Object'

Questions & Answers
1

I get the error above from the script below, I sort of understand the problem, basically it won’t let me assign a GameObject to a variable that’s an array/table. What I don’t understand is why I’m getting the error, somewhere in there it should get converted shouldn’t it? I literally copied and pasted the code from this page:

And then I changed the names on the variables and the tag so it actually fits in with my stuff.
Help please. Thank you. :slight_smile:

Alternatively if there’s another way to compose a table/list/array (I don’t really know what it’s properly called in C# in Unity), I could do that. my end goal is to have the list called voxels to contain every GameObject with the tag “TerrainVoxel”.

using UnityEngine;
using System.Collections;

public class SkyAir : MonoBehaviour {

	public GameObject Air;
	public GameObject VoxelTerrain;
	public Object voxels;

	// Use this for initialization
	void Start () {
		if (voxels == null)
			voxels = GameObject.FindGameObjectsWithTag("TerrainVoxel");

		foreach (Object voxel in voxels) {
			if (voxel.transform.position.y >= 513) {
				Instantiate (Air, voxel.transform.position, voxel.transform.rotation);
				Destroy (voxel);
			}
		}
	}
	
	// Update is called once per frame
	void Update () {
	
	}
}
2

Try this:

public Object[] voxels;
3

Try with this instead:
public GameObject Air;
public GameObject VoxelTerrain;
public GameObject voxels;

     // Use this for initialization
     void Start () {
         if (voxels == null)
             voxels = GameObject.FindGameObjectsWithTag("TerrainVoxel");
 
         foreach (GameObject voxel in voxels) {
             if (voxel.transform.position.y >= 513) {
                 GameObjet.Instantiate (Air, voxel.transform.position, voxel.transform.rotation);
                 Destroy (voxel);
             }
         }
     }
4

You have to stay true to your variable types.
FindGameObjectsWithTag() returns an array of GameObjects. You can’t put an array into a UnityEngine.Object variable.

Even if you could, on the next line, how could the compiler know that this ‘object’ you create is something you can loop with a foreach?

Even if it did, inside the foreach loop, a UnityEngine.Object does not have a variable ‘transform’, so voxel.transform won’t work either.

You have to declare ‘voxels’ a GameObject and ‘voxel’ a GameObject