check if LoadSceneAsync() failed

How can we check if loading scene via Addressables.LoadSceneAsync() failed (in WebGL)?
I tried OperationException != null and if Status == AsyncOperationStatus.Failed

Addressables version 1.13.1
Unity 2019.4.6f1

 

BUMP

 

Hi,

What happens if you check those two that you tried? There was an error but if you check those fields it seems like there's not? Can you post a code snippet where you're starting the async operation and checking if it failed?

There's also yourOperation.Task.isFaulted and yourOperation.Task.Exception

 

Multithreaded operation (at this moment) are not supported on WebGL.

Code (CSharp):

1.     void Start(){  
2.         Addressables.LoadSceneAsync(sceneToLoad, LoadSceneMode.Additive).Completed += OnSceneLoaded;
3.     }
4.  
5.     void OnSceneLoaded(AsyncOperationHandle<SceneInstance> obj)
6.     {
7.  
8.         if (obj.OperationException != null)
9.             Debug.Log("Exception");
10.  
11.         if (obj.Status == AsyncOperationStatus.Failed)
12.             Debug.Log("Failed");
13.      
14.         if (obj.Status == AsyncOperationStatus.Succeeded)
15.         {
16.             Debug.Log("Succeeded");
17.             obj.Result.ActivateAsync();
18.         }
19.         else
20.         {
21.             Debug.LogError("Failed to load scene at address: " + sceneToLoad);
22.         }
23.     }

 

Okay so what happens when you run this? It says succeeded, but then you see an error later?

 

actually OnSceneLoaded() is not even called.

Errors in console:
* Asset Bundle download is complete, but no data have been received
* Exception encountered in operation Resource<IAssetBundleResource>(************.bundle): RemoteAssetBundleProvider unable to load from url file:///***********.bundle, result='Unknown Error'.
* Scene '*******.unity' couldn't be loaded because it has not been added to the build settings or the AssetBundle has not been loaded.
* ArgumentNullException: Value cannot be null. Parameter name: _unity_self

I will try another way.

 

Oh oh right. Thanks for clarifying. That makes sense, maybe the "Completed" callbacks are only called on success.

You can try something like this:

Code (CSharp):

1.  
2. void Start(){
3.         StartCoroutine(LoadScene());
4.     }
5.  
6.     IEnumerator LoadScene()
7.     {
8.         var obj = Addressables.LoadSceneAsync(sceneToLoad, LoadSceneMode.Additive);
9.  
10.        
11.         yield return obj;
12.  
13.         if (obj.OperationException != null)
14.             Debug.Log("Exception");
15.         if (obj.Status == AsyncOperationStatus.Failed)
16.             Debug.Log("Failed");
17.    
18.         if (obj.Status == AsyncOperationStatus.Succeeded)
19.         {
20.             Debug.Log("Succeeded");
21.             obj.Result.ActivateAsync();
22.         }
23.         else
24.         {
25.             Debug.LogError("Failed to load scene at address: " + sceneToLoad);
26.         }
27.     }

 

Now i tried:

Code (CSharp):

1.     IEnumerator    DownloadMapNew(){
2.         var loadAsync = Addressables.LoadSceneAsync(sceneToLoad, LoadSceneMode.Additive);
3.    
4.         while (!loadAsync.IsDone)
5.         {
6.             Debug.Log(loadAsync.PercentComplete);
7.             yield return null;
8.         }
9.  
10.         if (loadAsync.OperationException != null)
11.             Debug.LogWarning("Exception");
12.         else Debug.LogWarning("NULL");
13.  
14.         if (loadAsync.Status == AsyncOperationStatus.Failed)
15.             Debug.LogWarning("Failed");
16.         else Debug.LogWarning("Succeeded");
17.     }

and in console was:
0.75
0.5
0.725
and errors (like above).

 

So the initial problem of not being able to check if it failed or not is solved now by using an IEnumerator, but you're still getting the errors from Addressables. I haven't used the download functionality so I'm not sure. Maybe someone from Addressables can chime in

 

"it failed or not is solved now by using an IEnumerator"
solved? I still can't check if map was successfully loaded.
All i see in browser console is errors.

 

BUMP