Thank you for your bug report. Is that still an issue? Which desktop environment do you use? (nm-applet isn't used by GNOME)
** Changed in: network-manager-applet (Ubuntu) Importance: Undecided => Low ** Changed in: network-manager-applet (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/1853331 Title: nm-applet assertion failure manipulatng widgets Status in network-manager-applet package in Ubuntu: Incomplete Bug description: nm-applet is logging a continuous stream of: Nov 20 15:42:54 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:42:54 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:42:54 X1 nm-applet[3092]: Can't set a parent on widget which has a parent Nov 20 15:44:54 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:44:54 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:44:54 X1 nm-applet[3092]: Can't set a parent on widget which has a parent Nov 20 15:45:55 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:45:55 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:45:55 X1 nm-applet[3092]: Can't set a parent on widget which has a parent Nov 20 15:46:40 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:40 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:40 X1 nm-applet[3092]: Can't set a parent on widget which has a parent Nov 20 15:46:40 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:40 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:40 X1 nm-applet[3092]: Can't set a parent on widget which has a parent Nov 20 15:46:55 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:55 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:55 X1 nm-applet[3092]: Can't set a parent on widget which has a parent Nov 20 15:46:55 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:55 X1 nm-applet[3092]: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed Nov 20 15:46:55 X1 nm-applet[3092]: Can't set a parent on widget which has a parent System updated on 19 Nov 2019 lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.3 LTS Release: 18.04 Codename: bionic ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: network-manager-gnome 1.8.10-2ubuntu3 ProcVersionSignature: Ubuntu 4.15.0-70.79-generic 4.15.18 Uname: Linux 4.15.0-70-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 Date: Wed Nov 20 15:48:21 2019 InstallationDate: Installed on 2018-11-06 (379 days ago) InstallationMedia: Ubuntu-Server 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) IpRoute: default via 192.168.178.1 dev enx3c18a0095fb1 proto dhcp metric 100 default via 192.168.178.1 dev wlp4s0 proto dhcp metric 600 192.168.178.0/24 dev enx3c18a0095fb1 proto kernel scope link src 192.168.178.24 metric 100 192.168.178.0/24 dev wlp4s0 proto kernel scope link src 192.168.178.29 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: network-manager-applet UpgradeStatus: No upgrade log present (probably fresh install) nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.10.14 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1853331/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp