'UnityEngine.AddressableAssets.InvalidKeyException' was thrown

Unity Engine
1

I’m testing our addressable system and want to deal with error handling nicely obviously for when a key doesn’t exist should a typo creep in somewhere but it seems that the system throws this exception before I get a chance to deal with it…? Even wrapping in try/catch it never catches where I’m expecting it to…?

    async void Start() {
        try {
            var loader = Addressables.LoadAssetAsync<Sprite>("invalid key");
            await loader.Task;
        } catch (System.Exception ex) {
            Debug.Log("Why don't we get this? " + ex.Message);
        }
    }

This results in two exceptions…

Exception encountered in operation UnityEngine.ResourceManagement.ResourceManager+CompletedOperation`1[UnityEngine.Sprite], result='', status='Failed': Exception of type 'UnityEngine.AddressableAssets.InvalidKeyException' was thrown., Key=invalid key

Exception encountered in operation UnityEngine.AddressableAssets.Initialization.InitializationOperation, result='', status='Succeeded' - Chain<Sprite>: ChainOperation of Type: UnityEngine.Sprite failed because dependent operation failed
Exception of type 'UnityEngine.AddressableAssets.InvalidKeyException' was thrown., Key=invalid key

I’ve found one other thread from months ago mentioning this but how is no-one else having this issue?? Is there some additional way to check the asset exists before attempting to load that I’m missing?

2 Likes
2

We just trawled through Addressables.ResourceLocators and cached off the asset once loaded, we do a check again our handle to see if it is loaded or not

Probably a better way but this worked for us

1 Like
3

I need a solution for this too. Want to deal with scene loading errors

4

So I’ve managed to work out this solution but it feels way too verbose that it needs to be…

var validateAddress = Addressables.LoadResourceLocationsAsync(address);
await validateAddress.Task;
if (validateAddress.Status == UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationStatus.Succeeded) {
        if (validateAddress.Result.Count > 0) {
                // asset exists go ahead and load
        }
}

.

1 Like
5

I’m not sure, but this might be useful for you:

It allows you to check if an asset key is valid synchronously … which the Addressable devs seem to think is blasphemous.

6

Please, help. Get InvalidKeyException, use default assets for settings. Analyze tells no errors, use Default Build Script, addressable is under packed Assets group.

code

Code for load / Instantiate:

        var validateKeyAsync = Addressables.LoadResourceLocationsAsync(key);
        validateKeyAsync.Completed += validateAsync =>
        {
            if (validateAsync.Status != AsyncOperationStatus.Succeeded)
            {
                Debug.LogError($"[ Spawn Failed ] '{key}' invalid!");
                return;
            }

            if (validateAsync.Result.Count <= 0)
            {
                Debug.LogError($"[ Spawn Failed ] address '{key}' results.Count == 0!");
                return;
            }

            Addressables.LoadAssetAsync<GameObject>(key).Completed += laodAsync =>
            {
                if (laodAsync.Status != AsyncOperationStatus.Succeeded || !laodAsync.Result) return;

                Addressables.InstantiateAsync(TextUtility.AddressById(data.id),
                    new InstantiationParameters(pos, Quaternion.identity, null)).Completed += instantiateAsync =>
                {
                    if (instantiateAsync.Status != AsyncOperationStatus.Succeeded) return;

                    var go = instantiateAsync.Result;
                    var item = go.GetComponent<Item>();
                    item.data = data;
                    item.transform.position = pos;
                };
            };
        };

validateAsync.Result.Count is always 0. If I comment this check out, I get InvalidKeyException. Prefab Is simple cube (ItemScript, Rigidbody, Collider, MeshRederer)

Works only in AssetDatabase mode. Simulate groups / use existing modes not work

7

I think you forgot to Build your Addressable Database, open the Addressables window and go to Build in the top right, then click New Build.

11 Likes
8

Thank you so much! This solved my problem!

9

Solved my problem too. Had to New Build it. Thanks guys

10

Is there a reason why I have to do this:

        private IEnumerator DoLoadAudio(string langID)
        {
            /* This block is stupid, but necessary or line 12 will throw an uncatchable error. */
            AsyncOperationHandle<IList<IResourceLocation>> validateAddress = Addressables.LoadResourceLocationsAsync(langID);
            yield return validateAddress.Task;
            if (validateAddress.Status != AsyncOperationStatus.Succeeded || validateAddress.Result == null || validateAddress.Result.Count == 0)
            {
                yield break;
            }

            List<string> keys = new List<string>() { langID };
            loadHandle = Addressables.LoadAssetsAsync<AudioClip>(keys, null, Addressables.MergeMode.Union, false);
          
            loadHandle.Completed += operation =>
            {
                foreach (AudioClip clip in operation.Result)
                {
                    // ...
                }
            };

            yield return loadHandle;
        }

And oh yeah the validateTask returns “success” with a count of 0 in the situation where the loadHandle errors.