The code looks clean and I have run it as an add-on from my own machine. (Placed it in a directory “my_addon” in the Anki2/addons21 directory as suggested by the Anki Add-on manual (Writing Anki Add-ons) .
I am running the Linux 2.1.44 (b2b3275f) client. I have uploaded the add-on leave the versions supported boxes both with the default zero (0). I have left the add-on available (“Save Note Type Settings”, 894792067).
How do I tell, if the version information is incorrect on the submitted add-on, or whether the code is at fault. And if the code is at fault — and it works fine on my machine — how do I find out where the code is wrong?
Many thanks in advance!