Unity - 查找当前场景中的Missing组件

最近遇到一个问题是从别的工程中拷贝的一个Prefab文件在保存的时候报NullRefrence的引用错误，经查找后确定是Prefab中存在丢失的脚本或者组件中丢失引用或者存在None的引用，如下几种:

None Refrences Missing Scripts Missing Components

手动找总会漏掉，然后还是报错，所以想到用脚本工具来查找，核心部分是判断脚本的引用存在但是引用值丢失了，如下：

                    if(sp.propertyType == SerializedPropertyType.ObjectReference)

                    {

                        if(sp.objectReferenceValue == null   && sp.objectReferenceInstanceIDValue != 0)

                        {

                            ShowError(context, go, c.GetType().Name, ObjectNames.NicifyVariableName(sp.name));

                        }

                    }

参考：https://www.gamasutra.com/blogs/LiorTal/20141208/231690/Finding_Missing_Object_References_in_Unity.php

完整代码：

using System.Linq;

using UnityEditor;

using UnityEngine;

using UnityEngine.SceneManagement;

public class FindMissingRefrence : MonoBehaviour

{

         [MenuItem("Tools/Find Missing Refrence In Current Scene")] 

         public static void FindMissingRefrencesInCurrentScene()

         {

                 var objects = GetSceneObjects();

                 FindMissingReferences(SceneManager.GetActiveScene().name, objects);

         }

         private static GameObject[] GetSceneObjects() => Resources.FindObjectsOfTypeAll().Where(go => string.IsNullOrEmpty(AssetDatabase.GetAssetPath(go)) && go.hideFlags == HideFlags.None).ToArray();

         private static void FindMissingReferences(string context, GameObject[] objects) 

         {

                 foreach(var go in objects)

                 {

                         var components = go.GetComponents();

                        foreach(var c in components)

                        {

                            if(!c)

                            {

                                    Debug.LogError("Missing Component in GO: " + FullPath(go), go);

                                    continue;

                                }

                            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)

                                            {

                                                    ShowError(context, go, c.GetType().Name, ObjectNames.NicifyVariableName(sp.name));

                                              }

                                        }

                                }

                    }

                }

            }

            private static void ShowError(string context, GameObject go, string c, string property) => Debug.LogError($"Missing Refrence in : [{context}]{FullPath(go)}. Component: {c}, Property: {property}");

            private static string FullPath(GameObject go) => go.transform.parent == null ? go.name : FullPath(go.transform.parent.gameObject) + "/" + go.name;

}