我嘗試了以下功能將圖像上傳到Firebase存儲 private async void UploadFiles()    {        var stream = File.Open(@"D:\\Capture.png", FileMode.Open);        var auth = new FirebaseAuthProvider(new FirebaseConfig(ApiKey));        var a = await auth.SignInWithEmailAndPasswordAsync(AuthEmail, AuthPassword);        var cancellation = new CancellationTokenSource();        var task = new FirebaseStorage(            Bucket,            new FirebaseStorageOptions            {                AuthTokenAsyncFactory = () => Task.FromResult(a.FirebaseToken),                ThrowOnCancel = true // when you cancel the upload, exception is thrown. By default no exception is thrown            })            .Child("receipts")           // .Child("test")            .Child("Capture.png")            .PutAsync(stream, cancellation.Token);        task.Progress.ProgressChanged += (s, e) => textBox1 .Text =($"Progress: {e.Percentage} %");        // cancel the upload        // cancellation.Cancel();        try        {            // error during upload will be thrown when you await the task          textBox1 .Text =("Download link:\n" + await task);        }        catch (Exception ex)        {            MessageBox .Show( ex.Message);        }    }給我這個錯誤：處理請求時發(fā)生異常。Url： https://firebasestorage.googleapis.com/v0/b/gs://testingsupport-44f0b.appspot.com//o?name=receipts%2FCapture.png 響應(yīng)： { “error”： { “code”： 400， “message”： “Invalid HTTP method/URL pair.” } }