I've got the same problem on a 10.10 installation.
Bad key or directory name: "/apps/gnome-alsamixer/display_mixers/": Key/directory may not end with a slash '/'
Bad key or directory name: "/apps/gnome-alsamixer/display_names/": Key/directory may not end with a slash '/'
I've got the same problem on a 10.10 installation. gnome-alsamixer /display_ mixers/ ": Key/directory may not end with a slash '/' gnome-alsamixer /display_ names/" : Key/directory may not end with a slash '/'
Bad key or directory name: "/apps/
Bad key or directory name: "/apps/