I've recently noticed that if I have
\usepackage[latin]{babel}
in my TeX preamble, then I get an error like:
! LuaTeX error ...xmf-dist/tex/luatex/luaotfload/luaotfload-fontloader.lua:3384:
bad argument #1 to 'gsub' (string expected, got nil).
<to be read again>
\def
l.3 \begingregorioscore
%
I don't know if this is because I upgraded to TeX Live 2014 or if we
have recently gained some incompatibility with babel.
Unfortunately, I am not TeX-savvy enough to know what is wrong or how
even to look for what is wrong. The offending line in
luaotfload-fontloader.lua is
name=string.gsub(name,"\\","/")
... so I'm assuming name is nil at this point.
If I comment out the babel line, then things work again, so I don't know
what is interacting to break this.
Any ideas?
Henry
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