This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian) (preloaded format=pdflatex 2025.4.4) 4 APR 2025 23:24 entering extended mode restricted \write18 enabled. %&-line parsing enabled. **.data/8f2f5964-b707-44cb-b239-c46d14674241/output/latex/solution.tex ! Emergency stop. <*> ...b239-c46d14674241/output/latex/solution.tex *** (job aborted, file error in nonstop mode) Here is how much of TeX's memory you used: 5 strings out of 483107 172 string characters out of 5964631 231847 words of memory out of 5000000 15131 multiletter control sequences out of 15000+600000 532338 words of font info for 24 fonts, out of 8000000 for 9000 59 hyphenation exceptions out of 8191 0i,0n,0p,1b,6s stack positions out of 5000i,500n,10000p,200000b,80000s ! ==> Fatal error occurred, no output PDF file produced!