"Submitted file is empty" while submitting XPI

Hi folks,

When I’m trying (on multiple add-ons) to submit a new version, I’m getting a “Submitted file is empty” announcement.

What is the reason for this?

Best regards,
Larry P.

It’s a known problem. In short, you need to use Firefox Release or Beta to upload. Nightly and I think Dev Edition are affected. This should be corrected eventually.