Unity Firebase 存储

如何解决Unity Firebase 存储

我正在创建一个从本地磁盘加载我的文件并将其上传到 firebase 云存储的函数。该函数能够在本地磁盘中找到该文件，但显示错误 firebase.storage.storageexception: Could not read file 。这是我的代码

    public void StartUpload()
    {
        StartCoroutine(Upload());
    }

    private IEnumerator Upload()
    {
        var storage = FirebaseStorage.DefaultInstance;
        var audioreference = storage.GetReference("gs://snack-stack.appspot.com");
        string local_file = "file:///" + Application.persistentDataPath + "/" + "UnityTest" + "/" + "lmao.png";
        var uploadTask = audioreference.PutFileAsync(local_file);
        yield return new WaitUntil(() => uploadTask.IsCompleted);

        if (uploadTask.Exception != null)
        {
            Debug.LogError($"Failed to upload because {uploadTask.Exception}");
            yield break;
        }

        var getUrltask = audioreference.GetDownloadUrlAsync();
        yield return new WaitUntil(() => getUrltask.IsCompleted);

        if (getUrltask.Exception != null)
        {
            Debug.LogError($"Failed to get a download url with {getUrltask.Exception}");
            yield break;
        }

        Debug.Log($"Downloaded from {getUrltask.Result}");