I use latex a lot. I want to install tikz-network. Here are a couple of command lines and their results.
$ tlmgr --version
(running on Debian, switching to user mode!)
tlmgr revision 46207 (2018-01-04 19:34:36 +0100)
tlmgr using installation: /usr/share/texlive
TeX Live (http://tug.org/texlive) version 2017
# tlmgr install tikz-network
(running on Debian, switching to user mode!)
tlmgr: Remote repository is newer than local (2017 < 2019)
Cross release updates are only supported with
update-tlmgr-latest(.sh/.exe) --update
Please see https://tug.org/texlive/upgrade.html for details.
$ tlmgr update all
(running on Debian, switching to user mode!)
tlmgr: Remote repository is newer than local (2017 < 2019)
Cross release updates are only supported with
update-tlmgr-latest(.sh/.exe) --update
Please see https://tug.org/texlive/upgrade.html for details.
$ update-tlmgr-latest --update
update-tlmgr-latest: command not found
tikz-networkis a package that can easily be installed manually, the.styfile is provided on CTAN (https://www.ctan.org/tex-archive/graphics/pgf/contrib/tikz-network). You can download it from there and put it either in the folder where you store your document (which allows you to use the package only for documents in that folder) or copy it into thetexmftree to make it available for all your documents. – Marijn Sep 27 '19 at 19:53sudo mktexlsrafterwards? See also https://tex.stackexchange.com/a/73017/ at Method 3 Install manually. – Marijn Sep 30 '19 at 07:23