Hello to the great community. I did an upgrade from 13.10 to 14.04 final beta, without fresh install. As expected it deactivated some of my ppa's but now i can't seem to be able to re-activate them. One of them is the ubuntu-sdk ppa which if I am not mistaken there is one for Trusty. It let's me choose it i enter password but it won't activate. How can I solve this?