Public bug reported:
Ubuntu desktop 26.04 development branch @ 1/3/2026
Journal logs give errors every few minutes with these gnome-shell
errors:
mrt 01 16:56:16 r00tb0x gnome-shell[4805]: Error: Virtual function not
implemented: Class StWidget doesn't implement event
Stack trace:
_create@file:///usr/share/gnome-shell/extensions/[email protected]/utils.js:375:45
addWithLabel@file:///usr/share/gnome-shell/extensions/[email protected]/utils.js:93:32
add@file:///usr/share/gnome-shell/extensions/[email protected]/utils.js:51:14
_showAppSpread@file:///usr/share/gnome-shell/extensions/[email protected]/appSpread.js:126:35
toggle@file:///usr/share/gnome-shell/extensions/[email protected]/appSpread.js:52:18
activate@file:///usr/share/gnome-shell/extensions/[email protected]/appIcons.js:681:64
vfunc_clicked@resource:///org/gnome/shell/ui/appDisplay.js:2992:14
@resource:///org/gnome/shell/ui/init.js:20:20
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: gnome-shell 50~beta-0ubuntu3
ProcVersionSignature: Ubuntu 6.19.0-6.6-generic 6.19.2
Uname: Linux 6.19.0-6-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 1 17:04:16 2026
DisplayManager: gdm3
InstallationDate: Installed on 2025-10-21 (131 days ago)
InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
ProcEnviron:
LANG=nl_NL.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
RelatedPackageVersions: mutter-common 50~beta-2ubuntu4
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to resolute on 2025-10-21 (131 days ago)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2142990
Title:
Error: Virtual function not implemented: Class StWidget doesn't
implement event
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