What happened to Apper? After I updated to F27 I never could load it
again--it kept crashing.
apper has been not well-maintained upstream for quite awhile... and it's
showing. It currently has 1 or 2 show-stopper crash bugs unfortunately.
BTW: the Discover app keeps returning "Bad GPG signature file
errors whenever I try to install anything.
Discover doesn't handle auto-importing gpg keys, so I would guess you're
trying to install something from a repo that hasn't had it's gpg key
What have you tried installing (that failed) precisely?
DNFDragora keeps returning some kind of Dbus error every time I try
install or upgrade something.
If you want maintainers to look into it, please record the exact error and
file a bug, thanks. (dnfdragora is probably the closest thing to replacing