This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian) (preloaded format=latex 2022.5.2)  27 MAR 2023 11:15
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**toc.tex
(./toc.tex
LaTeX2e <2021-11-15> patch level 1
L3 programming layer <2022-01-21>
! Undefined control sequence.
l.1 \tableofcontents
                    
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.

)
! Emergency stop.
<*> toc.tex
           
*** (job aborted, no legal \end found)

 
Here is how much of TeX's memory you used:
 16 strings out of 478288
 382 string characters out of 5849316
 289001 words of memory out of 5000000
 18313 multiletter control sequences out of 15000+600000
 469259 words of font info for 28 fonts, out of 8000000 for 9000
 1141 hyphenation exceptions out of 8191
 13i,0n,12p,55b,10s stack positions out of 5000i,500n,10000p,200000b,80000s
No pages of output.