I know this question looks like a duplicate but it's not, all the other solutions are not working for me.
I'm using debian 10 buster and I installed texlive with: sudo aptitude install texlive texlive-base
, then I tried to compile a document and got this error:
Package babel Error: Unkown option `french'. Either you misspelled it or the language definition file french.ldf was not found
Next I tried this:
tlmgr init-usertree
then this:
tlmgr install babel-french
but I got this error:
tlmgr: Remote repository is newer than local (2018 < 2019)
Cross release updates are only supported with update-tlmgr-latest(.sh/.exe) --update
Best Answer
Debian packages a complete TeXLive, so you can install matching packages from the Debian repositories. In your case you should install
texlive-lang-french
viaapt-get
(ortexlive-full
if you want to avoid this in the future).