Hello Das, On 03/01/2020 13:09, das wrote: >> >> You are mixing Ubuntu with Debian here: we cannot install Ubuntu packages on >> Debian (and vice versa). >> You have to choose either Debian or Ubuntu. If you want to play with ppa >> stuff, you must choose Ubuntu. >> If you want to stick to Debian and install the PPA material, you may to >> consider to build your own Debian >> packages from the Debian source that might be provided by PPA. This might be >> a fluid process or not. >> > > Thank you Jerome for this rapid response. I have understood what you > said, but I do not know how to solve this problem. > > I do know nothing about Debian or Ubuntu. For a little less than two > decades I was using Fedora. So, please give me some practical > suggestion. > > This is the content of my '/etc/apt/sources.list': > > << > deb http://deb.debian.org/debian buster main contrib non-free > deb-src http://deb.debian.org/debian buster main contrib non-free > > deb http://deb.debian.org/debian-security/ buster/updates main contrib > non-free > deb-src http://deb.debian.org/debian-security/ buster/updates main > contrib non-free > > deb http://deb.debian.org/debian buster-updates main contrib non-free > deb-src http://deb.debian.org/debian buster-updates main contrib non-free >>>
your sources.list is sane. Do you have any file in `/etc/apt/sources.list.d' ? > > I am getting no mention of Ubuntu here. But, still I am getting that > error message about 'http://ppa.launchpad.net/libreoffice/ppa/ubuntu > focal InRelease' from Synaptic. How to correct this error? PPA stuff is foreign to Debian: at one point some ubuntu material was introduce either by you or somewhere else (in thsi case, it is a bug). Ubuntu is build upon Debian, and bring its own stuff and policy. It is also more oriented to regular user. But coming from Fedora, I guess that you are familiar with UN*X. I would forget synpatic and use the command interface tools: aptidute(1), or better apt(1) (along sudo or as root). I am not a fan of graphical interfaces. > > Thanks > Das >
