LoadAssetAtPath returns null after compiling.

My problem is LoadAssetAtPath will return null in EditorWindow.OnEnable after compiling if AssetDatabase.SaveAssetIfDirty gets called in OnDisable.

Actually I'm not sure if it is a bug or not, I'm working with 2020.3.24, here is an example:

Code (CSharp):

1. [CreateAssetMenu(fileName = "BuildConfig.asset", menuName = "Build Config")]
2. public class BuildConfig : ScriptableObject
3. {
4.     const string CONFIG_PATH = "Assets/Editor/BuildConfig.asset";
5.  
6.     public class Window : EditorWindow
7.     {
8.         BuildConfig _config
9.    
10.         [MenuItem("Window/Build Config")]
11.         private static void OpenWindow()
12.         {
13.             GetWindow<Window>(true, "Build Config");
14.         }
15.  
16.         private void OnEnable()
17.         {
18.             _config = AssetDatabase.LoadAssetAtPath<BuildConfig>(CONFIG_PATH);
19.             Debug.Log($"config is null: {_config is null}");
20.         }
21.        
22.         private void OnDisable()
23.         {
24.             EditorUtility.SetDirty(_config);
25.             AssetDatabase.SaveAssetIfDirty(_config);
26.         }
27.     }
28. }

Steps to reproduce:

1. Create an asset at CONFIG_PATH with the menu
2. Open the window, you will see "config is null: False" in the console.
3. Make some changes to the script, let the code recompile, after that you will see "config is null: True".

I've also tried LoadMainAssetAtPath or LoadAssetAtPath(CONFIG_PATH, typeof(Object)), and I got same result.

But it's weired the following code will work:

Code (CSharp):

1. var all = AssetDatabase.LoadAllAssetsAtPath(CONFIG_PATH);
2. _config = all[0] as BuildConfig;

 

I have the exactly same problem.
LoadAssetAtPath() not always work in EditorWindow.OnEnable(), it always fail after Unity recompiling some code.
I'm using Unity 2021.3.6f.

 

do you find the solution?

 

Use `AssetDatabase.LoadAllAssetsAtPath();` instead, which is mentioned by geniusz.