I updated from 16.04 lts to 18.04 lts and now in mate tweak i only have 3 choices.
I am missing for example the familiar layout.
They are visible in my folder but mate tweak does not pick them up.
/usr/share/mate-panel/layouts$
Can someone tell me what to do?
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I’ve seen this too with upgrades, but I don’t know of a for-sure fix. One thing I can suggest you try is to reinstall the Ubuntu MATE metapackage to make sure you really have all the packages that a new install would have. You can do this with the following command:
sudo apt install ubuntu-mate-desktop^
(Yes, the ^ is intentional. Basically it makes sure everything in the metapackage will get installed.)
You can add --dry-run to see what will be installed first without actually installing:
sudo apt install ubuntu-mate-desktop^ --dry-run
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Tnx for the reply!
Unfortunately it did not work!
Try installing some of the individual applets, since the layout only shows those for which the software is available:
sudo apt install mate-applet-brisk-menu plank mate-hud
Which layouts can you currently see?
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You nailed it! This solved my problem. I had tradiotional and Redmond and Opensuse, now i have them all 
Thanks!
Thanks elcste for your answer. That help me with my problem. After remove evolution panel won't show time. After run your commands I realize that a remove dependency to panel layuot. Thanks