My first addon says "Duplicate add-on ID found"

I was trying to upload a new extension which ID is nuist-vpn@qwertycxz.top. The linter found some of my issue of this extension. After fixing that, I tried to upload again, but AMO said that my extension has a duplicate ID. How could I fix it? Thank you!

Hi there! You need to edit your manifest and change the gecko name of your addon to something else.

Thank you

Must I change the ID? The addon has not published to anywhere.

Thank you!

Hey, sorry I thought I responded to your earlier message.

The reason you’re seeing the duplicate ID error is that your first upload already registered this ID with AMO, even though the add-on was never published anywhere. AMO reserves the ID at the moment of submission, not when it goes public, so a second fresh upload with the same ID reads as a duplicate.

So instead of starting a brand new submission, you can continue with the add-on that already exists under this ID. In your Developer Hub you should find it sitting as an incomplete or draft submission. Open that one and upload your fixed version there, and the duplicate error will go away.

If you would rather start completely fresh, you can change the gecko id in your manifest to a new unique value and submit as a new add-on instead. One thing to keep in mind: a permanently deleted add-on ID can’t be reused later, so if you want to keep this one, don’t delete that draft.

Thank you!

-Christos