Hi, I am having trouble building ThBook in latest Therion in Fedora 37. I am getting the following error: [ 98%] Generating thbook.pdf This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdftex) restricted \write18 enabled. kpathsea: Running mktexfmt pdftex.fmt mktexfmt: mktexfmt is using the following fmtutil.cnf files (in precedence order): mktexfmt: /usr/share/texlive/texmf-dist/web2c/fmtutil.cnf mktexfmt: mktexfmt is using the following fmtutil.cnf file for writing changes: mktexfmt: /home/rodrigo/.texlive2021/texmf-config/web2c/fmtutil.cnf mktexfmt [INFO]: writing formats under /home/rodrigo/.texlive2021/texmf-var/web2c mktexfmt [INFO]: --- remaking pdftex with pdftex mktexfmt [WARNING]: inifile pdfetex.ini for pdftex/pdftex not found. mktexfmt [INFO]: not selected formats: 19 mktexfmt [INFO]: failed to build: 1 (pdftex/pdftex) To my untrained eyes it seems that a "pdfetex.ini" file is missing. Any ideas on how to solve this issue? Regards, Rodrigo Severo