Menu System Tools/Software Updater not working after Lubuntu upgrade from 16.04 to 18.04

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Menu System Tools/Software Updater not working after Lubuntu upgrade from 16.04 to 18.04

grasso

Dear mailing list members,

Hopefully I can get support for below issue.

I recently upgraded from Lubuntu 16.04 to 18.04 and did not find any issues on applications I previously used.
Unfortunately now Software Updater is not working.

Menu System Tools/Software Updater shows update information but does not update:
After clicking on Install Now the Updater screen will be shown only for a few seconds.

I used LXTerminal to be able to show error message shown below.
Update error after trying to update using /usr/bin/update-manager

cp-admin@cpadmin-PX707AA-ABH-SR1409NL-NL520:/usr/bin$ cd /usr/bin
cp-admin@cpadmin-PX707AA-ABH-SR1409NL-NL520:/usr/bin$ update-manager

(update-manager:4944): GLib-GIO-CRITICAL **: 11:46:57.955: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
cp-admin@cpadmin-PX707AA-ABH-SR1409NL-NL520:/usr/bin$

Extra information about upgrade:
During the upgrade I got a question about "Configuring unattanded-upgrades" the following Help information was shown:
>>>
A new version (/etc/apt/apt.conf.d/50unattended-ipgrades.ucftmp) of configuration file "/etc/apt/apt.conf.d/50unattended-ipgrades is available, but the version installed currently has been locally modified.
<<<
I responded with "install the package maintainer's version" i.s.o. "keep the local version currently installed"

Checked currently available versions of files starting with 50:
ls -l /etc/apt/apt.conf.d/50*
-rw-r--r-- 1 root root  625 mrt 16 12:23 /etc/apt/apt.conf.d/50command-not-found
-rw-r--r-- 1 root root 3728 jul 18 13:22 /etc/apt/apt.conf.d/50unattended-upgrades
-rw-r--r-- 1 root root 2656 mei 20  2017 /etc/apt/apt.conf.d/50unattended-upgrades.ucf-dist
-rw-r--r-- 1 root root 2331 apr  2  2014 /etc/apt/apt.conf.d/50unattended-upgrades.ucf-old

--
Kind regards,

Frans Grasso
The Netherlands
E-mail: [hidden email]

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Re: Menu System Tools/Software Updater not working after Lubuntu upgrade from 16.04 to 18.04

Colin Law
On Fri, 17 Aug 2018 at 14:43, grasso <[hidden email]> wrote:

>
> Dear mailing list members,
>
> Hopefully I can get support for below issue.
>
> I recently upgraded from Lubuntu 16.04 to 18.04 and did not find any issues on applications I previously used.
> Unfortunately now Software Updater is not working.
>
> Menu System Tools/Software Updater shows update information but does not update:
> After clicking on Install Now the Updater screen will be shown only for a few seconds.
>
> I used LXTerminal to be able to show error message shown below.
> Update error after trying to update using /usr/bin/update-manager
>
> cp-admin@cpadmin-PX707AA-ABH-SR1409NL-NL520:/usr/bin$ cd /usr/bin
> cp-admin@cpadmin-PX707AA-ABH-SR1409NL-NL520:/usr/bin$ update-manager
>
> (update-manager:4944): GLib-GIO-CRITICAL **: 11:46:57.955: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

When you run it in the terminal does it popup any windows? If so then
what do you see there?

Colin

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