Which version of Trisquel are you using?
hi
I try install mate
but I can install it
sudo add-apt-repository ppa:ubuntu-mate-dev/ppa
Package repository for Ubuntu MATE.
Packages living here are either required to build the Ubuntu MATE .iso images
or provide the meta packages.
More info:
Are you sure your using the right Ubuntu PPA for your version of
Trisquel? There's a page about installing MATE on the Trisquel wiki you
should have a look at.
hi Magic Banana
I use this
https://trisquel.info/en/wiki/installing-matehttps://trisquel.info/en/wiki/installing-mate
its same
hi danieru
I reinstalled trisquel
but its same
Don't know what to say, if I add ppa:ubuntu-mate-dev/ppa with
add-apt-repository it works just fine. Though add-apt-repository will
finalize after giving some debug info if you press Contrl + C instead of
Intro.
It seems to me add-apt-repository is not working correctly at adding the ppa
signing key. Don't know how to fix it though, but chances are that you have a
broken system so I would recommend to make a fresh install of Trisquel.