Error with transfer - System.ObjectDisposedException: Cannot access a closed Stream.

[m1dst]

I have created a simple project based on the templates. All I've done is add a button/command which adds a download to the queue. The background task seems to start but immediately fails with an issue about accessing a closed stream. I've tried comparing with the samples but I just can't see what is wrong here.

[0:] Shiny.Net.Http.HttpTransferProcess: Debug: HTTP Transfer: 784d9b37-bc67-4a1a-a7c9-28bcca831e6c - Error with transfer - System.ObjectDisposedException: Cannot access a closed Stream.
   at System.IO.MemoryStream.EnsureNotClosed()
   at System.IO.MemoryStream.CopyToAsync(Stream destination, Int32 bufferSize, CancellationToken cancellationToken)
   at Xamarin.Android.Net.AndroidMessageHandler.WriteRequestContentToOutput(HttpRequestMessage request, HttpURLConnection httpConnection, CancellationToken cancellationToken) in /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Xamarin.Android.Net/AndroidMessageHandler.cs:line 547
   at Xamarin.Android.Net.AndroidMessageHandler.DoProcessRequest(HttpRequestMessage request, URL javaUrl, HttpURLConnection httpConnection, CancellationToken cancellationToken, RequestRedirectionState redirectState) in /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Xamarin.Android.Net/AndroidMessageHandler.cs:line 623
   at Xamarin.Android.Net.AndroidMessageHandler.DoSendAsync(HttpRequestMessage request, CancellationToken cancellationToken) in /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Xamarin.Android.Net/AndroidMessageHandler.cs:line 456
   at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
   at Shiny.Net.Http.HttpClientExtensions.<>c__DisplayClass1_1.<<Download>b__1>d.MoveNext()

Attached is the project in case it helps point out anything obvious.

DeleteMe3.zip

[m1dst]

Looks like this was just a copy, paste, and modify issue without fully checking the rest of the code. Here was the problem.

QueueFile = new Command(async () =>
{

    await _httpTransferManager.Queue(new HttpTransferRequest(
        Guid.NewGuid().ToString(),
        "https://bit.ly/1GB-testfile",
        false,
        Path.Combine(Platform.AppData.FullName, Guid.NewGuid() + ".download"),
        UseMeteredConnection:true,
        Headers: new Dictionary<string, string>
        {
            { "Test", "Test" }
        },
        HttpContent: TransferHttpContent.FromJson(new { Text = "This is test JSON" })
    ));
});

You will notice there is a line HttpContent: TransferHttpContent.FromJson(new { Text = "This is test JSON" }) which means nothing to a download. This line is for uploading content and doesn't make sense.

I haven't checked the Shiny source but perhaps it uses the existence of HttpContent for some check rather than the IsUpload property.

Removing HttpContent allowed the download to be completed without issue.