Gamasutra: The Art & Business of Making Gamesspacer
View All     RSS
October 16, 2018
arrowPress Releases
  • Editor-In-Chief:
    Kris Graft
  • Editor:
    Alex Wawro
  • Contributors:
    Chris Kerr
    Alissa McAloon
    Emma Kidwell
    Bryant Francis
    Katherine Cross
  • Advertising:
    Libby Kruse

If you enjoy reading this site, you might also want to check out these UBM Tech sites:


Finding Missing Object References in Unity

by Lior Tal on 12/08/14 01:44:00 pm   Featured Blogs

The following blog post, unless otherwise noted, was written by a member of Gamasutra’s community.
The thoughts and opinions expressed are those of the writer and not Gamasutra or its parent company.


Screen Shot 2014-12-06 at 15.54.40This article was originally posted on my blog at

The post provides a short solution for finding “Missing” object references.

I plan to have more of these code posts that solve a specific problem I have faced myself; hopefully these could assist others and save them valuable time. Check out the blog for more of these articles in the future !

Missing References

A missing reference is different from no reference at all (in which case the inspector shows “None”). These are probably the result of some mixup in .meta files that results in having a link with an invalid object id. The problem is, for a large project it may be difficult to spot all these. Luckily, we can exercise some editor scripting to the rescue…


Here is the full code for finding these missing references, in case you run into this issue:

[MenuItem("Tools/Find Missing references in scene")]
public static void FindMissingReferences()
    var objects = GameObject.FindObjectsOfType();
    foreach (var go in objects)
        var components = go.GetComponents();
        foreach (var c in components)
            SerializedObject so = new SerializedObject(c);
            var sp = so.GetIterator();
            while (sp.NextVisible(true))
                if (sp.propertyType == SerializedPropertyType.ObjectReference)
                    if (sp.objectReferenceValue == null && sp.objectReferenceInstanceIDValue != 0)
private static void ShowError (string objectName, string propertyName)
    Debug.LogError("Missing reference found in: " + objectName + ", Property : " + propertyName);
private static string FullObjectPath(GameObject go)
    return go.transform.parent == null ? : FullObjectPath(go.transform.parent.gameObject) + "/" +;


To use, paste this code into a new class in an editor folder, load the scene you’d like to find missing references in, and click the menu option “Tools/Find Missing references in scene”.

Any issues found will be shown in the Console (as errors).

Related Jobs

Deep Silver Volition
Deep Silver Volition — Champaign, Illinois, United States

Studio Programming Director
Phosphor Studios
Phosphor Studios — Chicago, Illinois, United States

Senior Engine Programmer
Airship Syndicate
Airship Syndicate — Austin, Texas, United States

Senior Programmer
Remedy Entertainment
Remedy Entertainment — Espoo, Finland

Senior Gameplay Programmer

Loading Comments

loader image