This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live 2019/dev/Debian) (preloaded format=latex 2021.1.1) 31 JAN 2021 16:05 entering extended mode \write18 enabled. %&-line parsing enabled. **config.tex (./config.tex LaTeX2e <2018-12-01> ! Undefined control sequence. l.209 \graphicspath {{./images/}} The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! LaTeX Error: Missing \begin{document}. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.209 \graphicspath{{. /images/}} You're in trouble here. Try typing to proceed. If that doesn't work, type X to quit. Missing character: There is no . in font nullfont! Missing character: There is no / in font nullfont! Missing character: There is no i in font nullfont! Missing character: There is no m in font nullfont! Missing character: There is no a in font nullfont! Missing character: There is no g in font nullfont! Missing character: There is no e in font nullfont! Missing character: There is no s in font nullfont! Missing character: There is no / in font nullfont! Overfull \hbox (20.0pt too wide) in paragraph at lines 209--210 [] [] ! Undefined control sequence. l.230 \lstloadlanguages {TeX} The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! LaTeX Error: Missing \begin{document}. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.230 \lstloadlanguages{T eX} You're in trouble here. Try typing to proceed. If that doesn't work, type X to quit. Missing character: There is no T in font nullfont! Missing character: There is no e in font nullfont! Missing character: There is no X in font nullfont! Overfull \hbox (20.0pt too wide) in paragraph at lines 230--231 [] [] ) ! Emergency stop. <*> config.tex *** (job aborted, no legal \end found) Here is how much of TeX's memory you used: 18 strings out of 494372 269 string characters out of 6171427 52767 words of memory out of 5000000 3817 multiletter control sequences out of 15000+600000 3640 words of font info for 14 fonts, out of 8000000 for 9000 81 hyphenation exceptions out of 8191 7i,0n,7p,144b,18s stack positions out of 5000i,500n,10000p,200000b,80000s No pages of output.