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I use vim with with vim-latexsuite and TexLive. I use the .sty and .cls files, respectively the whole package date 2012-05-10 from the university of Hagenberg Link to zip package.

Till yesterday everything works like a charm which means that the document including the bibliography was build as intended.

Today I updated my notebook to vim 7.3, vim-latexsuite 20121118-1 and texlive 2012.28273-1.

I tried to compile my main file but the document doesn't either show a bibliography nor references in the text. I have no idea why the bibliography cannot be resolved.

I devided the information I have into two sections.

In section 1 I try to show the relevant parts of my main, [sty] and cls document.

In section 2 I try to show the relevant parts of the log files.

// Section 1 / main-file

\AddBibFile{literatur.bib}  % Angabe der BibTeX-Datei; is a wrapper for \addbibresource defined in .cls



\MakeBibliography{Quellenverzeichnis}  %defined in .cls


/ .cls-file (hgbthesis.cls) - extract

\usepackage{csquotes}   % recommended for biblatex
% opt. arg (#1): optional argument "nosplit" to get a 1-piece bibliography
% req. arg (#2): main title of bibliography
    {% create a single bibliography with all entries:
    {% split the bibliography using the predefined categories:

// Section 2

I did a backup of the whole directory thus I compared the aux file and had a look in to the .log and .blg file.

// .aux files / old - correct .aux file

\@writefile{lot}{\defcounter {refsection}{0}\relax }\@writefile{lot}

/ new .aux file

\@writefile{lot}{\defcounter {refsection}{0}\relax }\@writefile{lot}   

// new .log file shows the following message

LaTeX Warning: Citation 'MarStraPerfMgt' on page 4 undefined on input line 29.

// new .blg file shows this message

I found no \citation commands---while reading file cb_MainFile.aux
I found no \bibdata command---while reading file cb_MainFile.aux
I found no \bibstyle command---while reading file cb_MainFile.aux

Citations in my document look like this:

\autocite[some text]{book1}
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closed as too localized by lockstep, Martin Schröder, Seamus, Kurt, Claudio Fiandrino Jan 28 '13 at 12:38

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Have you tried to compile a very simple document with biblatex references, only to check whether the problem is in biblatex or in you complicated code? – yo' Jan 8 '13 at 22:29
test with .tex and .bib,courtesy of andy-roberts.net – texenthusiast Jan 8 '13 at 22:35
Do you process the bib file with bibtex or biber. Newer versions of biblatex use biber as default backend. – Guido Jan 9 '13 at 8:09
As Guido says, the present version of biblatex uses Biber as default backend for generating the .bbl file; you probably are still using BibTeX. I don't know how to persuade Vim to call Biber, but you can do it from the command line: biber filename as usual – egreg Jan 9 '13 at 9:48
I compiled a sample doc (from texenthusiast) as tohecz advised. Worked fine. I think the reason for the error occured because the backend to biblatex changed as Guido supposed. This line changed to: \usepackage[style=numeric-comp,backend=bibtex8]{biblatex}[2011/05/12] ---- I'm aware that I should vote for comments and answers but although I'm registered it is not possible. – clementis Jan 9 '13 at 16:09