missing prefab check

Problem: After unity manually deletes the prefab, it packs Assetbundle for the prefab with the deleted prefab, and unity does not report an error Crash.

To solve the crash check code is as follows:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
 
 
public class MissingPrefabDetector
{
    [MenuItem("Util/Find Missing Prefab")]
    static void Init()
    {
        string[] allPrefabs = GetAllPrefabs();
 
        int count = 0;
        EditorUtility.DisplayProgressBar("Processing...", "Begin Job", 0);
 
        foreach (string prefab in allPrefabs)
        {
            AssetDatabase.ImportAsset(prefab);
            UnityEngine.Object o = AssetDatabase.LoadMainAssetAtPath(prefab);
 
            if (o == null)
            {
                Debug.Log("prefab " + prefab + " null?");
                continue;
            }
 
            GameObject go;
            try
            {
                go = o as GameObject;
                EditorUtility.DisplayProgressBar("Processing...", go.name, ++count / (float)allPrefabs.Length);
                FindMissingPrefabInGO(go, prefab, true);
            }
            catch
            {
                Debug.Log("For some reason, prefab " + prefab + " won't cast to GameObject");
            }
        }
        EditorUtility.ClearProgressBar();
    }
 
 
    static void FindMissingPrefabInGO(GameObject g, string prefabName, bool isRoot)
    {
        if (g.name.Contains("Missing Prefab"))
        {
            Debug.LogError($"{prefabName} has missing prefab {g.name}");
            return;
        }
 
        if (PrefabUtility.IsPrefabAssetMissing(g))
        {
            Debug.LogError($"{prefabName} has missing prefab {g.name}");
            return;
        }
 
        if (PrefabUtility.IsDisconnectedFromPrefabAsset(g))
        {
            Debug.LogError($"{prefabName} has missing prefab {g.name}");
            return;
        }
 
        if (!isRoot)
        {
            if (PrefabUtility.IsAnyPrefabInstanceRoot(g))
            {
                return;
            }
            GameObject root = PrefabUtility.GetNearestPrefabInstanceRoot(g);
            if (root == g)
            {
                return;
            }
        }
 
 
        // Now recurse through each child GO (if there are any):
        foreach (Transform childT in g.transform)
        {
            //Debug.Log("Searching " + childT.name  + " " );
            FindMissingPrefabInGO(childT.gameObject, prefabName, false);
        }
    }
 
    public static string[] GetAllPrefabs()
    {
        string[] temp = AssetDatabase.GetAllAssetPaths();
        List<string> result = new List<string>();
        foreach (string s in temp)
        {
            if (s.Contains(".prefab")) result.Add(s);
        }
        return result.ToArray();
    }
}