Recently (within the past few weeks) gnome-maps fails to launch in Ubuntu 20.04. It used to work. My only change has been installing updates from Canonical as they are released.
When launching I get the following warnings (and a few more):
(org.gnome.Maps:26721): Gtk-WARNING **: 09:15:00.496: Attempting to add a widget with type GtkImage to a container of type GtkClutterOffscreen, but the widget is already inside a container of type GtkClutterOffscreen, please remove the widget from its existing container first.
(org.gnome.Maps:26721): Gjs-WARNING **: 09:15:00.523: JS ERROR: TypeError: action is null
_setRevealSidebar@resource:///org/gnome/Maps/js/mainWindow.js:537:9
_createSidebar/<@resource:///org/gnome/Maps/js/mainWindow.js:168:61
addPoint@resource:///org/gnome/Maps/js/routeQuery.js:203:14
_init@resource:///org/gnome/Maps/js/sidebar.js:95:21
_createSidebar@resource:///org/gnome/Maps/js/mainWindow.js:166:23
_init@resource:///org/gnome/Maps/js/mainWindow.js:113:30
_createWindow@resource:///org/gnome/Maps/js/application.js:265:28
vfunc_activate@resource:///org/gnome/Maps/js/application.js:284:14
main@resource:///org/gnome/Maps/js/main.js:57:24
run@resource:///org/gnome/gjs/modules/script/package.js:222:19
start@resource:///org/gnome/gjs/modules/script/package.js:206:5
@/usr/bin/gnome-maps:2:17