Yes, I installed davdroid from F-Droid and always upgraded it that way.
In that case, what if you uninstall the current app using Android’s
Settings / Apps menu and after that try installing the new version
I’m trying to avoid that because I will have to reconfigure my accounts,
which is quite annoying.
If you get the same error in F-Droid, download the APK and try
installing it manually. That will provide more information about
what’s going wrong.
Before I tried that, I remember I got a warning about shortage on space
some days ago, so even when I had more than 400MB of free space, I made
some more room and now I could upgrade without errors. For some reason
it seems like F-Droid needs a lot of temporary space? 😕
Anyway, thanks for the help and sorry for the noise!
I am so very sorry, it is incomplete! Browser didn’t complain. It’s been broke almost two weeks. It’ll be fixed this evening. Again, so sorry for the bogus report. Thanks for the test site though, should be handy to keep mistakes like that from happening.