This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017) (preloaded format=pdflatex 2019.9.5) 6 SEP 2019 21:22 entering extended mode restricted \write18 enabled. %&-line parsing enabled. **mwe.tex (./mwe.tex LaTeX2e <2017/01/01> patch level 3 Babel <3.10> and hyphenation patterns for 10 language(s) loaded. (/usr/share/texmf-dist/tex/latex/base/article.cls Document Class: article 2014/09/29 v1.4h Standard LaTeX document class (/usr/share/texmf-dist/tex/latex/base/size10.clo File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option) ) \c@part=\count79 \c@section=\count80 \c@subsection=\count81 \c@subsubsection=\count82 \c@paragraph=\count83 \c@subparagraph=\count84 \c@figure=\count85 \c@table=\count86 \abovecaptionskip=\skip41 \belowcaptionskip=\skip42 \bibindent=\dimen102 ) (/usr/share/texmf-dist/tex/generic/babel/babel.sty Package: babel 2017/05/19 3.10 The Babel package ! Package babel Error: Unknown option `UKenglish'. Either you misspelled it (babel) or the language definition file UKenglish.ldf was not fo und. See the babel package documentation for explanation. Type H for immediate help. ... l.393 \ProcessOptions* ? ! Emergency stop. ... l.393 \ProcessOptions* Valid options are: shorthands=, KeepShorthandsActive, activeacute, activegrave, noconfigs, safe=, main=, math= headfoot=, strings=, config=, hyphenmap=, or a language name. Here is how much of TeX's memory you used: 301 strings out of 494846 3616 string characters out of 6178276 51127 words of memory out of 5000000 3708 multiletter control sequences out of 15000+600000 3640 words of font info for 14 fonts, out of 8000000 for 9000 36 hyphenation exceptions out of 8191 23i,0n,17p,111b,36s stack positions out of 5000i,500n,10000p,200000b,80000s ! ==> Fatal error occurred, no output PDF file produced!