Object field in custom editor

Hello,

I'm trying to add a field to allow to choose an object in my custom editor but unfortunly it doesn't works.

Here my custom editor code :

Code (CSharp):

1.  
2. using UnityEditor;
3. using UnityEngine;
4. using System.Collections;
5.  
6. public override void OnInspectorGUI () {
7.         Spell gameObject_Spell = (Spell)target;
8. // ...
9.  
10.         gameObject_Spell.EffectArea = (EffectArea) EditorGUILayout.ObjectField("Effect Area", gameObject_Spell.EffectArea, gameObject_Spell.EffectArea.GetType(), true);
11.  
12. }

But VisualStudio doens't recognize the signature EditorGUILayout.ObjectField(string, source, type, allowSceneObject) wich exist in the documentation : https://docs.unity3d.com/ScriptReference/EditorGUILayout.ObjectField.html

And the must strange part is that i can see the signature in the autocompletion :


Does someone know why ?

Thanks for your help.

 

What is EffectArea? Is that a MonoBehaviour? Did you read the error message? What did it say?

 

Ok i found what is the problem :
The second parameter have to be a unity object ... this mean a UnityEngine.Object child and not a System.Object child.
When you create a custom class, by default it's a System.Object child.

Thanks for the help.