This happened to me, too, I Googled around and found setting an environment variable would make the Settings panel/app work:
[user@fedora28vm ~] env XDG_CURRENT_DESKTOP=GNOME gnome-control-center
(I re-typed the above while looking at another machine rather than copy/paste hopefully no typos!)
This issue, plus the weird long list of apps on the Qubes menu submenu for fedora-28 templatevm scared me off using this template VM, which I created following the docs on the site (but I went from 26->28 directly, which docs say should work). So I still use fedora-26 for all but 1 appVM.
> On Aug 14, 2018, at 8:13 PM, Michael MENG <
michae...@gmail.com> wrote:
>
> Any luck? I idid reinstall fedora 28 template, and install "fedora workstation", but still the same.
>
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