I’m not an Ubuntu expert, but I believe you need to update Mono as a minimum. Check out this topic: Updating Manager fails - #5 by JHNC. Also, search the forum for “ubuntu mono” and you will find several more.
I’m not an Ubuntu expert, but I believe you need to update Mono as a minimum. Check out this topic: Updating Manager fails - #5 by JHNC. Also, search the forum for “ubuntu mono” and you will find several more.