$ plank -v
[INFO 17:37:39.100646] [AbstractMain:229] Plank version: 0.11.4
[INFO 17:37:39.100831] [AbstractMain:230] Kernel version: 4.9.76-gentoo-r1
[INFO 17:37:39.100906] [AbstractMain:231] GLib version: 2.52.3 (2.52.3)
[INFO 17:37:39.100974] [AbstractMain:234] GTK+ version: 3.22.19 (3.22.19)
[INFO 17:37:39.101018] [AbstractMain:237] Wnck version: 3.24.1
[INFO 17:37:39.101069] [AbstractMain:238] Cairo version: 1.14.8
[INFO 17:37:39.101117] [AbstractMain:239] Pango version: 1.40.14
[INFO 17:37:39.101154] [AbstractMain:241] + Cairo/Gtk+ HiDPI support enabled
[INFO 17:37:39.101190] [AbstractMain:244] + Dynamic Quicklists support enabled
[INFO 17:37:39.101224] [AbstractMain:247] + XInput Barriers support enabled
[WARN 17:37:39.101272] [Environment:161] XDG_SESSION_CLASS not set in this environment!
[INFO 17:37:39.125099] [WindowControl:68] Window-manager: Openbox
[VERBOSE 17:37:39.125408] Searching for modules in folder '/usr/lib64/plank/docklets'
[DEBUG 17:37:39.126455] [DockletManager:204] Loading module '/usr/lib64/plank/docklets/libdocklet-clock.so'
[INFO 17:37:39.126546] [DockletManager:107] Docklet 'clock' registered
[DEBUG 17:37:39.127234] [DockletManager:204] Loading module '/usr/lib64/plank/docklets/libdocklet-cpumonitor.so'
[INFO 17:37:39.127312] [DockletManager:107] Docklet 'cpumonitor' registered
[DEBUG 17:37:39.128031] [DockletManager:204] Loading module '/usr/lib64/plank/docklets/libdocklet-trash.so'
[INFO 17:37:39.128110] [DockletManager:107] Docklet 'trash' registered
[DEBUG 17:37:39.128849] [DockletManager:204] Loading module '/usr/lib64/plank/docklets/libdocklet-clippy.so'
[INFO 17:37:39.128983] [DockletManager:107] Docklet 'clippy' registered
[DEBUG 17:37:39.130662] [DockletManager:204] Loading module '/usr/lib64/plank/docklets/libdocklet-desktop.so'
[INFO 17:37:39.130845] [DockletManager:107] Docklet 'desktop' registered
[VERBOSE 17:37:39.130986] Finished searching for modules in folder '/usr/lib64/plank/docklets'
[ERROR 17:37:39.131244] [Utils:42] GSettingsSchema 'net.launchpad.plank' not found
Trace/breakpoint trap