You are right. A typo in /etc/apt/sources.list.d/additional-repositories.list, but it somehow did not produce any error, but it's fixed now. Sorry for being off-topic.
On-topic is that the outdated Keepass 2.25 (that's all that Ubuntu uses at the moment) still does not copy & paste. It did work for a while after I installed xsel, but the bug has re-appeared. Also, Ctrl-Shift-Insert does NOT work. xsel is 1.2.0-2.
You are right. A typo in /etc/apt/ sources. list.d/ additional- repositories. list, but it somehow did not produce any error, but it's fixed now. Sorry for being off-topic.
On-topic is that the outdated Keepass 2.25 (that's all that Ubuntu uses at the moment) still does not copy & paste. It did work for a while after I installed xsel, but the bug has re-appeared. Also, Ctrl-Shift-Insert does NOT work. xsel is 1.2.0-2.