> I have the following configuration:
> - texlive-full (including texlive-bibtex-extra) from unofficial
> - biber 2.5
> - Lyx 2.2.1 from ppa:lyx-devel/release
> After the last update, LyX show me a compatibility error message.
>  Utils.pm:165> ERROR - Error: Found biblatex control file version
> expected version 3.1.
> - biber version is 2.5 (system-wide, and no other versions present
> - documentations suggest biblatex 3.4. The .bcf file in the folder has
> the following header:
> <?xml version="1.0" encoding="UTF-8"?>
> <bcf:controlfile version="3.1" bltxversion="3.4" xmlns:bcf="
> Can you help me fix this? The bibliography of my document results now in
> an empty page. I'm asking here since my system appears to have the correct
> packages. For completeness, I "Reconfigured" lyx just after the package
You need to install biber 2.6 which is not yet packaged as far as I know for
1) uninstall biber 2.5
3) extract it and install it as root in /usr/local/bin