This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020/Debian) (preloaded format=pdflatex 2021.12.11) 18 APR 2022 16:22 entering extended mode restricted \write18 enabled. file:line:error style messages enabled. %&-line parsing enabled. **/home/lilian/Dev/project/generateur_testing/Generateur/backend_v2/api/exercices/tex/test.tex (/home/lilian/Dev/project/generateur_testing/Generateur/backend_v2/api/exercices/tex/test.tex LaTeX2e <2020-10-01> patch level 4 L3 programming layer <2021-01-09> xparse <2020-03-03> (/usr/share/texlive/texmf-dist/tex/latex/base/article.cls Document Class: article 2020/04/10 v1.4m Standard LaTeX document class (/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo File: size10.clo 2020/04/10 v1.4m Standard LaTeX file (size option) ) \c@part=\count177 \c@section=\count178 \c@subsection=\count179 \c@subsubsection=\count180 \c@paragraph=\count181 \c@subparagraph=\count182 \c@figure=\count183 \c@table=\count184 \abovecaptionskip=\skip47 \belowcaptionskip=\skip48 \bibindent=\dimen138 ) (/usr/share/texlive/texmf-dist/tex/latex/fontspec/fontspec.sty (/usr/share/texlive/texmf-dist/tex/latex/l3packages/xparse/xparse.sty (/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3.sty Package: expl3 2021-01-09 L3 programming layer (loader) (/usr/share/texlive/texmf-dist/tex/latex/l3backend/l3backend-pdftex.def File: l3backend-pdftex.def 2020-01-29 L3 backend support: PDF output (pdfTeX) \l__color_backend_stack_int=\count185 \l__pdf_internal_box=\box47 )) Package: xparse 2020-10-27 L3 Experimental document command parser (/usr/share/texlive/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex)) Package: fontspec 2020/02/21 v2.7i Font selection for XeLaTeX and LuaLaTeX /usr/share/texlive/texmf-dist/tex/latex/fontspec/fontspec.sty:45: Fatal Package fontspec Error: The fontspec package requires either XeTeX or (fontspec) LuaTeX. (fontspec) (fontspec) You must change your typesetting engine to, (fontspec) e.g., "xelatex" or "lualatex"instead of (fontspec) "latex" or "pdflatex". Type to continue. ... l.45 \msg_fatal:nn {fontspec} {cannot-use-pdftex} LaTeX does not know anything more about this error, sorry. Try typing to proceed. If that doesn't work, type X to quit. This is a fatal error: LaTeX will abort. /usr/share/texlive/texmf-dist/tex/latex/fontspec/fontspec.sty:45: Emergency stop. l.45 \msg_fatal:nn {fontspec} {cannot-use-pdftex} *** (cannot \read from terminal in nonstop modes) Here is how much of TeX's memory you used: 452 strings out of 480568 9271 string characters out of 5896661 277444 words of memory out of 5000000 17519 multiletter control sequences out of 15000+600000 403430 words of font info for 27 fonts, out of 8000000 for 9000 395 hyphenation exceptions out of 8191 81i,0n,89p,325b,44s stack positions out of 5000i,500n,10000p,200000b,80000s /usr/share/texlive/texmf-dist/tex/latex/fontspec/fontspec.sty:45: ==> Fatal error occurred, no output PDF file produced!