UWP open folder with file explorer

Someone have a example how to do this?
When i use "Start Debugging" in VS i get this error:

Code (csharp):

1. onecoreuap\shell\windows.system.launcher\lib\windows.system.launcher.cpp(1903)\Windows.System.Launcher.dll!00007FF8F6CCBA70: (caller: 00007FF875066B2A) ReturnHr(1) tid(8970) 8000000E A method was called at an unexpected time

my code:

Code (CSharp):

1. using UnityEngine;
2. using System.Threading.Tasks;
3. #if UNITY_WSA && !UNITY_EDITOR
4. using Windows.Storage;
5. using Windows.System;
6. using System;
7. #endif
8.  
9. namespace MyNamespace
10. {
11.     public class MyClass : MonoBehaviour
12.     {
13. #if UNITY_WSA && !UNITY_EDITOR
14.         async
15. #endif
16.         public void OpenLocalFolder(string path)
17.         {
18. #if UNITY_WSA && !UNITY_EDITOR
19.             Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
20.             await Windows.System.Launcher.LaunchFolderAsync(localFolder);
21. #endif
22.         }
23.     }
24. }

 

thanks... finally

Code (CSharp):

1.  
2.         public void OpenLocalFolder()
3.         {
4. #if UNITY_WSA && !UNITY_EDITOR
5.             UnityEngine.WSA.Application.InvokeOnUIThread(async() => {
6.                 Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
7.                 await Windows.System.Launcher.LaunchFolderAsync(localFolder);
8.             }, false);
9. #endif
10.         }