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On my installations of Ubuntu 18.04 and 18.10 all the indicator icons from Chrome, Dropbox, Ulauncher, InSync and Steam are missing. These are the indicator currently installed: enter image description here

And these are the Gnome extensions installed: enter image description here

Looking Glass shows no error for the gnome-shell-extension-appindicator: enter image description here

Roberto Leinardi
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    Ubuntu 18.10 is not yet released and therefore off-topic at AskUbuntu. See the following link, if you want to participate in the development and testing, [Ubuntu Development version / How to participate](https://askubuntu.com/questions/1018033/ubuntu-development-version-how-to-participate) – sudodus Sep 29 '18 at 14:27
  • I find out the problem and I discovered that the same thing can happen also on Ubuntu 18.04. I'm going to post an answer shortly. – Roberto Leinardi Sep 29 '18 at 21:46

1 Answers1

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The problem was having Unity and its indicators installed. After removing completely Unity and all its indicators the icons are back:

enter image description here

This is the list of the package with "indicator" in the name you should have installed:

$ apt list --installed | grep indicator    

gnome-shell-extension-appindicator/cosmic,cosmic,now 22-1 all [installed]
libappindicator1/cosmic,now 12.10.1+18.04.20180322.1-0ubuntu1 amd64 [installed,automatic]
libappindicator3-1/cosmic,now 12.10.1+18.04.20180322.1-0ubuntu1 amd64 [installed]
libindicator3-7/cosmic,now 16.10.0+18.04.20180321.1-0ubuntu1 amd64 [installed]
libindicator7/cosmic,now 16.10.0+18.04.20180321.1-0ubuntu1 amd64 [installed,automatic]
Roberto Leinardi
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  • Great! Removing Unity fixed it for me. – Daviz Oct 10 '18 at 13:53
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    Nice, but this really isn't a solution to the problem. Most people did not use any Unity features - certainly not unity-tweak - when installing 18.10, and so there is nothing to remove. The indicators are still missing for me and for many others. – Kelley Oct 24 '18 at 20:40
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    This fixes the issue where you don't get any app indicator at all. Unfortunately some apps still don't show the icon, like Chrome in my case. – Roberto Leinardi Oct 25 '18 at 06:49