Upgrade to 17.10 - no icon

On my syslog I have:
Oct 31 10:37:13 TimPassingham gnome-software[23426]: failed to rescan: Failed to parse /usr/share/applications/classicmenu-indicator.desktop.dpkg-new file: cannot process file of type text/plain
Oct 31 10:37:13 TimPassingham gnome-software[23426]: failed to rescan: Failed to parse /usr/share/applications/classicmenu-indicator.desktop.dpkg-tmp file: cannot process file of type text/plain
Oct 31 10:37:13 TimPassingham gnome-software[23426]: failed to rescan: Failed to parse /usr/share/applications/classicmenu-indicator.desktop file: cannot process file of type application/x-desktop

And:

Oct 31 10:39:04 TimPassingham classicmenu-ind[23384]: GtkDialog mapped without a transient parent. This is discouraged.

And:

Oct 31 10:47:27 TimPassingham classicmenu-ind[23384]: Owner of volume monitor org.gtk.vfs.UDisks2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts
....
Oct 31 10:47:27 TimPassingham gnome-shell[23193]: [AppIndicatorSupport-WARN] Failed to acquire org.kde.StatusNotifierWatcher
...
Oct 31 10:47:27 TimPassingham classicmenu-ind[23384]: Owner of volume monitor org.gtk.vfs.GoaVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
...
Oct 31 10:47:27 TimPassingham classicmenu-ind[23384]: Owner of volume monitor org.gtk.vfs.AfcVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Oct 31 10:47:27 TimPassingham classicmenu-ind[23384]: Owner of volume monitor org.gtk.vfs.GPhoto2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts
...
Oct 31 10:47:27 TimPassingham classicmenu-ind[23384]: Owner of volume monitor org.gtk.vfs.MTPVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
...
Oct 31 10:47:27 TimPassingham classicmenu-ind[23384]: classicmenu-indicator: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.

I tried something else. First I killed the classicmenu-indicator process. Then I ran it from a terminal using:

sudo classicmenu-indicator

And lo and behold the icon appeared, with the correct menu. Unfortunately everything then ran as root, which is not quite what I needed.

Is there some sort of permissions problem with 17.10?

I decided to recheck everything.

Although the guide says the KStatusNotifierItem/AppIndicator extension is not needed on ubuntu 17.10 I installed it anyway, and that fixed the problem on my system.

This bug can therefore be closed - notabug (except maybe clarify the instructions at https://www.florian-diesch.de/software/classicmenu-indicator/ for ubuntu 17.10)

Another wrinkle to add to this is that the behaviour is different depending on which desktop I log in with, and there are inter-dependencies with other extensions.

Having settled on the ubuntu (xorg) login, I had to disable Ubuntu Appindicators which was showing an error (and for other reasons enable Topicons +). With Ubuntu Appindicators enabled and KStatusNotifierItem/AppIndicator disabled, the menu does not appear on my 17.10 system.

Having got it running reliably the menu style has now downgraded to expand each top level menu in-line, rather than to one side as it used to. For large categories that means scrolling on an expanded list in between top level items, which is less than ideal. Is there any way to revert to the previous style? (classicmenu-indicator -m still shows the old and much better style).

Me again...

It seems that there are ubuntu 17.10 issues. See https://bugs.launchpad.net/ubuntu/+source/indicator-application/+bug/1728449 and others.

Having removed various unity indicators as recommended in that report, removing topicons plus and KStatusNotifierItem/AppIndicator extensions, Ubuntu appindicators now works.

The only issue I now have is that I wish the old format menu could be shown, with the 2nd level menu items shown off to one side rather than inline. Is there any way to do that?

I have the same problems with a fresh install of 17.10. In both X and Wayland modes, I only have in-inline menus which are very hard to use.