Unexpected exception when use relative download path

[IMJoyJ]

protected async Task StartDownload(string fileName)
    string dirName = Path.GetDirectoryName(fileName);
    if (dirName != null)
    {
        Directory.CreateDirectory(dirName); // ensure the folder is existing
    }

Imagine using "current folder" for the download path:
Path.GetDirectoryName("temp.zip") => result: ""
then
Directory.CreateDirectory("") => leads to an exception

Improve:
A quick solution is using
if (string.IsNullOrEmpty(dirName))
instead of
if (dirName != null)

Or...
"The user should just use .\temp.zip instead of temp.zip"
Well, also makes sense, I guess...

[bezzad]

Thank you for your patience. This issue has been resolved in version 3.3.1. Please update to the latest version and test to see if the problem has been addressed. If you continue to experience any issues, feel free to reopen this ticket.

We appreciate your feedback and appreciate your help in improving our project.

Best regards