This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live 2018) (preloaded format=pdflatex 2021.11.20)  20 NOV 2021 13:13
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**prop_v1

! Emergency stop.
<*> prop_v1
           
End of file on the terminal!

 
Here is how much of TeX's memory you used:
 4 strings out of 494917
 103 string characters out of 6180698
 45840 words of memory out of 5000000
 3423 multiletter control sequences out of 15000+600000
 3640 words of font info for 14 fonts, out of 8000000 for 9000
 14 hyphenation exceptions out of 8191
 0i,0n,0p,11b,6s stack positions out of 5000i,500n,10000p,200000b,80000s
!  ==> Fatal error occurred, no output PDF file produced!