Find all missing scripts in unity3d scene

SelectGameObjectsWithMissingScripts.cs

using UnityEngine;
using UnityEditor;
using System.Collections.Generic;
using UnityEngine.SceneManagement; //3
 
public class SelectGameObjectsWithMissingScripts : Editor
{
    [MenuItem("Tools/WPAG Utilities/Select GameObjects With Missing Scripts")]
    static void SelectGameObjects()
    {
        //Get the current scene and all top-level GameObjects in the scene hierarchy
        Scene currentScene = SceneManager.GetActiveScene();
        GameObject[] rootObjects = currentScene.GetRootGameObjects();
 
        List<Object> objectsWithDeadLinks = new List<Object>();
        foreach (GameObject g in rootObjects)
        {
            //Get all components on the GameObject, then loop through them 
            Component[] components = g.GetComponents<Component>();
            for (int i = 0; i < components.Length; i++)
            {
				Component currentComponent = components[i];
 
                //If the component is null, that means it's a missing script!
                if (currentComponent == null)
                {
                    //Add the sinner to our naughty-list
                    objectsWithDeadLinks.Add(g);
                    Selection.activeGameObject = g;
                    Debug.Log(g + " has a missing script!");
                    break;
                }
            }
        }
        if (objectsWithDeadLinks.Count > 0)
        {
            //Set the selection in the editor
            Selection.objects = objectsWithDeadLinks.ToArray();
        }
        else
        {
            Debug.Log("No GameObjects in '" + currentScene.name + "' have missing scripts! Yay!");
        }
    }
}

You should use GetComponentsInChildren to find all nested components under GameObject.

Doing that works to find missing scripts but the selection breaks (it selects the parent (which can be very high in the hierarchy) and not the gameobject with missing script)

I wanted to make it work but I ended up using https://assetstore.unity.com/packages/tools/game-toolkits/missing-reference-finder-257205

Absolute garbage

#if UNITY_EDITOR
using UnityEngine;
using UnityEditor;
using System.Collections.Generic;
using UnityEngine.SceneManagement; //3

public class SelectGameObjectsWithMissingScripts : Editor
{
[MenuItem("Tools/WPAG Utilities/Select GameObjects With Missing Scripts")]
static void SelectGameObjects()
{
List allObjects = new List();
foreach (GameObject obj in UnityEngine.Object.FindObjectsOfType(true))
{
allObjects.Add(obj);
}

    List<Object> objectsWithDeadLinks = new List<Object>();
    foreach (GameObject g in allObjects)
    {
        Component[] components = g.GetComponents<Component>();
        for (int i = 0; i < components.Length; i++)
        {
            Component currentComponent = components[i];
            if (currentComponent == null)
            {
                objectsWithDeadLinks.Add(g);
                Debug.Log(g + " - Find Fucking issue object", g);
            }
        }
    }
    if (objectsWithDeadLinks.Count > 0)
    {
    }
    else
    {
        Debug.Log("Not Found");
    }
}

}
#endif