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I have a problem with a document I'm writing and I found no suitable response to my problem:

Package babel Warning: No hyphenation patterns were preloaded for (babel) the language `French' into the format. (babel) Please, configure your TeX system to add them and (babel) rebuild the format. Now I will use the patterns (babel) preloaded for \language=nohyphenation instead on input line 56.

Here is what I put on the document:

\documentclass[final]{report} \usepackage[frenchb]{babel} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc}

I use pdflatex on Fedora 23. I have correctly install texlive-lang-french and texlive-hyphen-french.

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    Try running (as superuser) mktexfmt --all Commented Dec 21, 2015 at 17:01
  • Thanks ! I tried mktexfmt --all but I had fmtutil: unknown option --all, try --help.. So I launched fmutil --all and fmtutil-sys --all as root but I always have the problem. Commented Dec 22, 2015 at 0:14
  • So when you ran sudo mktexfmt --all it complained that --all was an unknown option for fmtutil, but then you ran sudo fmtutil --all ? That doesn't make sense. I would recommend ditching Fedora's TeX Live packages and installing TeX Live from upstream. All you need is a small dummy package to keep the package manager happy, and it will all work beautifully. Distro's packagings of TeX Live are not always entirely happy ones. Commented Dec 22, 2015 at 0:34
  • Sounds really weird to mee too. I'll try to install it from source... Thanks for your response. Commented Dec 22, 2015 at 0:48
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    fmtutil is the local version of fmtutil-sys. For some strange reason (at least on Fedora 24). fmtutil does not accept --all as an option for rebuilding files. However, using fmtutil --missing --refresh should do virtually the same thing and fixes the hyphenation problem for me. Commented Jul 8, 2017 at 12:53

4 Answers 4

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I had the same problem on Fedora 29. texlive-lang-french and texlive-hyphen-french were installed, but hyphenation did not work.

I found a solution on Red Hat Bugzilla: to remove the directory ~/.texlive2018.

Removing the directory ~/.texlive2018 and using the latest version of texlive solved the problem. This directory has been created by some previous execution of pdflatex (already on Fedora 29, because I installed from scratch), but maybe before the hyphenation packages had been installed. Further tests are needed to determine if the bug persists in the latest version when a user installs the hyphenation packages after ~/.texlive2018 has been created.

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    on Fedora 34 : $ rm -rf ~./texlive2020 worked for me Commented Jun 15, 2021 at 11:18
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I found out what was the problem (and I'll try to explain what I understood) : On Fedora, hyphenations files are located to /usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/loadhyph/* and seems not to be the real location/name for hyphenation files.

Adding hyphsubst seems to authorize pdflatex to load hyphenation files from unusual places. So when I added it, it worked !

I'm not sure it's the real reason but if someone has a better explanation : you can contradict me with pleasure ;)

Long story, short story, I added :

\usepackage{hyphsubst}
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    fwiw, I'm also on Fedora (25) and have the same problem, but this didn't help in my case. Commented Apr 16, 2017 at 17:26
  • I cannot find this package on MikTex 2.9. Does it exists? Commented Jan 30, 2023 at 20:35
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I faced the same issue on openSUSE Tumbleweed. The force reinstall of texlive-hyphen-czech helped me in my case. It looks like texlive sometimes loses files during a package update.

$ zypper in -f texlive-babel-czech texlive-hyphen-czech texlive-cs-fonts texlive-csbulletin texlive-texlive-cz texlive-cslatex-bin texlive-cs texlive-cslatex

I did full reinstall of Czech related packages in my case, so I can't tell if it's caused only by texlive-hyphen-czech.

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  • This solution also works on Fedora 36 (with dnf of course). In my case, I used sudo dnf install texlive-hyphen-german Commented Aug 22, 2022 at 9:24
  • I had this problem too. The above solution worked for me as well. And then for good measure rm -rf ~/.texlive* and fmtutil-sys --all. And you guessed right ... Fedora too ... bummer Commented Sep 20, 2022 at 12:12
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To summarize, assuming that the required packages have been installed (for example with Fedora's dnf), the TeX formats are updated with

sudo fmtutil-sys --all

and fmtutil-user should not be used in general as explained here.

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