Unity-如何从磁盘中从磁盘加载.gaf文件和gaf资源？

Question

从服务器下载时，我在磁盘上保存了两个文件.gaf和.png。我使用此功能创建了gaf实例，但似乎无法正常工作。它显示了错误信息并丢失了资源。

 void CreateAsset()
{
    string assetName = Ulti.GetPath(storyName + "/") + dataStorySection.arrDataImages[0].gafPath;
    if (assetName.EndsWith(".gaf", StringComparison.Ordinal))
    {
        byte[] fileBytes = null;
        using (BinaryReader freader = new BinaryReader(File.OpenRead(assetName)))
        {
            fileBytes = freader.ReadBytes((int)freader.BaseStream.Length);
        }
        Debug.LogError("fileBytes : " + fileBytes.Length + " - sizeof(int) : " + sizeof(int));
        if (fileBytes.Length > sizeof(int))
        {
            int header = BitConverter.ToInt32(fileBytes.Take(4).ToArray(), 0);
            if (GAFHeader.isCorrectHeader((GAFHeader.CompressionType)header))
            {
                GAFAnimationAsset animationAsset = ScriptableObject.CreateInstance<GAFAnimationAsset>();
                //animationAsset = GAFEditorUtils.SaveAsset(animationAsset, Path.GetDirectoryName(assetName) + "/" + Path.GetFileNameWithoutExtension(assetName) + "_swf.asset");
                //GAFResourceManagerInternal.instance.createResources<GAFTexturesResourceInternal>(GafClip.asset);
                animationAsset.initialize(fileBytes, "", "");
                List<string> lst = animationAsset.resourcesPaths;
                //GAFTracking.sendAssetCreatedRequest(assetName);
                movieClip.initialize(animationAsset);
                movieClip.reload();
                movieClip.play();
            }
        }
    }
}

有人可以告诉我怎么做吗？谢谢：）