In my newly installed linux machine (Fedora 19), editing a formerly working document under lyx, I get:
Package fontenc Error: Encoding file 'lgrenc.def' not found
and in fact I see that the dir /usr/share/texlive/texmf-dist/tex/latex/greek-fontenc/ is empty
But installing it by yum install yum install texlive-greek-fontenc.noarch, (and calling texhash, and doing reconfigure&exit&restart in lyx), although I now have the lgrenc.def file, the error becomes:
LaTeX error: this NFSS system isnt set up properly
\begin{document}
For encoding scheme LGR the defaults cmr/m/n do not form a valid font shape
The system maintainer forgot to specify a suitable substitution font shape usin
g the DeclareErrorFont command
followed by many
corrupted NFSS tables
any hint?
Best Answer
I had the same error in Ubuntu. A previously working document with greek letters gave the two errors below:
The package greek-fontenc was missing. I installed the package "TexLive: Greek" from the Ubuntu repository and after that the document compiled properly.
"TexLive: Greek" is the debian package texlive-lang-greek. It contains greek-fontenc but also a bunch of other TeX packages. Perhaps you're missing one of them (e.g. cbfonts, "a complete set of Greek fonts"). See its debian page for the list of TeX packages included.