BibTeX, biblatex and biber ⇒ BibLaTeX styles remain undefined

[DonkeyKong]

Hey guys, I just started (trying) to use biblatex, but it won't work. My problem is that every compiling gives me the following error message:

! Package keyval Error: style undefined.
See the keyval package documentation for explanation.

Here is my minimal example:

Code: Select all

\documentclass{article}
\usepackage[backend=bibtex]{biblatex}
\addbibresource[style=numeric]{verzeichnis.bib}
\begin{document}
\cite{TeX-book}
\printbibliography
\end{document}

strange is, that the compiler produces an pdf-file that looks like I want. If I change the style in the \addbibresource-line I get the same error-message.

I'm using TexMaker on Ubuntu 14.04.

Is it possible that there are any packages missing? How can I find out?

Regards

[Johannes_B]

Hi and welcome,

addbibresource does not get optional arguments. The style is loaded as an option to the package. The biblatex default is style=numeric.

Your bibliography database has a german name, i suggest to read Literaturverzeichnisse mit LaTeX, or the still beta of an update on github.

[DonkeyKong]

Thanks a lot Johannes, that was exactly what I was searching for. Now everything works