BibLatex keep producing errors in Lyx 2.1.4 with MikTex

Question

As many people suggest to use BibLatex instead of BibTex, but I cannot get it working in Lyx 2.1.4 with MikTex. I have seen many webpages, but still confused.

I followed the instruction in lyx wiki (http://wiki.lyx.org/BibTeX/Biblatex), but lyx got five errors and cannot output correct PDF file.

\documentclass[english]{article}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}

\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\usepackage[english,ngerman,frenchb]{babel}
\usepackage{csquotes}
\usepackage[style=authoryear,backend=biber]{biblatex}
\addbibresource{biblatex-examples.bib}

\makeatother

\usepackage{babel}
\begin{document}
This is a test of biblatex. \cite{aksin,almendro,aristotle:anima,aristotle:poetics}

\printbibliography[title=References]

\bibliographystyle{plain}
\bibliography{biblatex-examples}

\end{document}

And it is strange that if I delete the

\bibliographystyle{plain}
\bibliography{biblatex-examples}

in TeXworks, it works fine.

I really do not know what the problem is in Lyx.

Answer 1

The problem, as the manual says, is that you haven't put the bibtex button in a comment. This is to trick LyX into using its citation infrastructure without exporting \bibliographystyle and \bibliography to LaTeX. Note that these two are bibtex commands, they can't be used with biblatex. Check if the examples from http://wiki.lyx.org/BibTeX/Biblatex work for you.