I recently upgraded from Texlive 2017 to Texlive 2018 by default through dnf on a fedora 28 system, using Kile as the front end. My tex installation now fails to produce anything. I have removed texlive 2016 and uninstalled and reinstalled the 2018 version with no joy. On using Kile, my output gives me
***** ***** PDFLaTeX output: ***** cd "/home/<username>/work/science/chemistry/mod_io_mat" ***** pdflatex -shell-escape *****
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017) (preloaded format=pdflatex) \write18 enabled.
I'm at a loss and under some time pressure....