Error during runtime async loading of GLB file about gltfutility HOT 4 CLOSED

I have the same issue.

from gltfutility.

Code:
Importer.ImportGLTFAsync(path, new ImportSettings(),
model =>
{
onModelLoaded?.Invoke(model);
});

Model:
https://poly.google.com/view/eu-5IFEOh6C

Error:

JsonReaderException: Unexpected character encountered while parsing value: g. Path '', line 0, position 0.
Newtonsoft.Json.JsonTextReader.ParseValue () (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonTextReader.Read () (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonReader.ReadAndMoveToContent () (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType (Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonContract contract, System.Boolean hasConverter) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType, System.Boolean checkAdditionalContent) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonConvert.DeserializeObject (System.String value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value, Newtonsoft.Json.JsonSerializerSettings settings) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value) (at <97722d3abc9f4cf69f9e21e6770081b3>:0)
Siccity.GLTFUtility.Importer+<>c__DisplayClass9_0.b__0 () (at Assets/GLTFUtility/Scripts/Importer.cs:154)
System.Threading.Tasks.Task1[TResult].InnerInvoke () (at <df7127ba07dc446d9f5831a0ec7b1d63>:0) System.Threading.Tasks.Task.Execute () (at <df7127ba07dc446d9f5831a0ec7b1d63>:0) Rethrow as AggregateException: One or more errors occurred. System.Threading.Tasks.Task.ThrowIfExceptional (System.Boolean includeTaskCanceledExceptions) (at <df7127ba07dc446d9f5831a0ec7b1d63>:0) System.Threading.Tasks.Task1[TResult].GetResultCore (System.Boolean waitCompletionNotification) (at :0)
System.Threading.Tasks.Task`1[TResult].get_Result () (at :0)
Siccity.GLTFUtility.Importer+d__9.MoveNext () (at Assets/GLTFUtility/Scripts/Importer.cs:157)
UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) (at C:/buildslave/unity/build/Runtime/Export/Coroutines.cs:17)

For all my models I get the same error.
Tried to get content of json string from LoadAsync method it is showing 'glTF' only, no json

from gltfutility.

Found it! 😃
Add this to Importer.cs:

    public static void ImportGLBAsync(string filepath, ImportSettings importSettings, Action<GameObject> onFinished)
    {
        byte[] bytes = File.ReadAllBytes(filepath);

        // 12 byte header
        // 0-4  - magic = "glTF"
        // 4-8  - version = 2
        // 8-12 - length = total length of glb, including Header and all Chunks, in bytes.
        string magic = Encoding.ASCII.GetString(bytes.SubArray(0, 4));
        if (magic != "glTF")
        {
            Debug.LogError("File at " + filepath + " does not look like a .glb file");
            onFinished(null);
        }
        uint version = System.BitConverter.ToUInt32(bytes, 4);
        if (version != 2)
        {
            Debug.LogError("Importer does not support gltf version " + version);
            onFinished(null);
        }
        // What do we even need the length for.
        //uint length = System.BitConverter.ToUInt32(bytes, 8);

        // Chunk 0 (json)
        uint chunkLength = System.BitConverter.ToUInt32(bytes, 12);
        // This prints out JSON. So predictable.
        //string chunkType = Encoding.ASCII.GetString(bytes.SubArray(16, 4));
        string json = Encoding.ASCII.GetString(bytes.SubArray(20, (int)chunkLength));
        // Parse json
        LoadAsync(json, filepath, importSettings, onFinished).RunCoroutine();
    }

Then use to load GLB on runtime:

using Siccity.GLTFUtility;

void ImportGLBAsync(string filepath)
{
    Importer.ImportGLBAsync(filepath, new ImportSettings(), OnFinishAsync);
}

void OnFinishAsync(GameObject result)
{
    Debug.Log("Finished importing " + result.name);
}

from gltfutility.

Async GLB import is now officially supported

from gltfutility.