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I've a strange issue. After restarting my laptop, top menu bar is blinking and disappearing. I'm getting the below error If I run the command wingpanel --toggle-indicator app-launcher:

[15:24:33.917940 GLib-GObject-Critical] g_object_new_valist: object class 'SecurityPrivacyPlug' has no property named 'supported-settings' wingpanel: symbol lookup error: /usr/lib/x86_64-linux-gnu/switchboard/personal/pantheon-security-privacy/libpantheon-security-privacy.so: undefined symbol: switchboard_plug_get_supported_settings

Also, here is a screenshot: enter image description here

What should I do to fix it?

PS:// Restarting my laptop, apt-get upgrade didn't help

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2 Answers 2

Reset to default
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I just applied updates via appcenter and had the same issue. Switchboad won't open either. I'm not sure if it's a new bug in switchboard-plug-security-privacy or what, but I was able to remove that switchboard plug to get everything working, well everything minus that plug.

 sudo apt remove switchboard-plug-security-privacy
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  • Hi, thanks for you solution. It's working now after removing it as you suggested.
    – xurshid29
    Nov 5, 2016 at 4:39
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This seems to be an issue only with the Daily PPA enabled where some related packages are not yet updated.

This is Danel's answer on Launchpad https://bugs.launchpad.net/switchboard-plug-security-privacy/+bug/1639357/comments/1

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  • I removed the one from daily ppa and installed one from stable ppa, now working
    – Anwar
    Dec 3, 2016 at 16:59

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