Hi This failure is due to a combination of issues.
Some author of texlive-extra got creative to specify their copyright years: - 2023 -20** by Romain NOEL <romain...@free.fr> - 2011-.. Maïeul Rouquette This leads to error when parsing copyright ranges and this triggers the error you've seen. I'll change Software::Copyright to cope with these new ways of specifying a copyright. Another problem is that some copyrights are not utf-8: texmf-dist/source/latex/beamertheme-gotham/gotham.dtx LPPL-1.3c 2023 -20** by Romain NOEL <romain...@free.fr> texmf-dist/source/latex/beamertheme-gotham/gotham.ins LPPL-1.3c 2008 Romain NOÃL <romain...@free.fr> texmf-dist/tex/latex/beamertheme-gotham/beamercolorthemegotham.sty UNKNOWN 2023 -20** by Romain NOÃL <romain...@free.fr> texmf-dist/tex/latex/beamertheme-gotham/beamerfontthemegotham.sty UNKNOWN 2023 -20** by Romain NOÃL <romain...@free.fr> texmf-dist/tex/latex/beamertheme-gotham/beamerinnerthemegotham.sty UNKNOWN 2023 -20** by Romain NOÃL <romain...@free.fr> texmf-dist/tex/latex/beamertheme-gotham/beamerouterthemegotham.sty UNKNOWN 2023 -20** by Romain NOÃL <romain...@free.fr> texmf-dist/tex/latex/beamertheme-gotham/beamerthemegotham.sty UNKNOWN 2023 -20** by Romain NOÃL <romain...@free.fr> This also triggers the error you've seen. I'm going to modify lib/Dpkg/Copyright/Grant/ByDir.pm to tolerate these issues, but the resulting copyright may not be as accurate as possible. I'd suggest you talk with upstream to fix the encoding of the source files. All the best
