2014-04-05 13:34 GMT+02:00 Jürgen Spitzmüller:
> 2014-04-05 13:20 GMT+02:00 Bernd Kappenberg:
>
> ! Undefined control sequence.
>> <argument> blx@lng@\bbl@main@language
>>
>
> This looks like a mismatch of polyglossia and biblatex. It might be a
> problem in your setting/distribution (the file compiles fine for me with
> XeTeX).
>
> Does it work if you use pdflatex instead of XeTeX?
>
Wait, I think I know what's happening. Biblatex needs to detect whether
babel or polyglossia is used, but LyX loads polyglossia after the user
preamble, too late for biblatex detection.
Does it help if you write
\usepackage{polyglossia}
just before the \usepackage{biblatex} line?
Jürgen
>
> Jürgen
>
