Biblatex bibliography no longer shows up

I don't know what is going on, but I've moved computers and my biblatex bibliography no longer gets printed.

I do the usual:

\addbibresource{references.bib}
\nocite{*}
...
\printbibliography
\end{document}


I am using TeXworks and click on the play button with the "pdfLaTex" selected. But there is no bibliography that gets generated! All it says is:

54 LaTeX Warning: Empty bibliography on input line 54.


which is the line that says \printbibliography.

I am using Windows 7. I tried MikTeX, and just tried TeXworks (from TeX Live) – same thing.

I have no idea what's going on, any help?

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i have to ask: did you copy the file references.bib to the new computer??? –  Oz123 Jul 30 '11 at 5:53
Yes, it's in the same folder as the file I am compiling "main.tex". –  drozzy Jul 30 '11 at 5:58
Did you run latex - bibtex - latex? (Sorry, really a wild guess...) –  Rainer Jul 30 '11 at 10:53
@Rainer: thanks for the guess! I converted this into a comment to the question, as the answer space below is reserved for real answers. –  Stefan Kottwitz Jul 30 '11 at 11:12
As Rainer hinted: Compile with "pdflateX", then "BibTeX", then "pdfLaTeX". –  lockstep Jul 30 '11 at 19:43
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Ok the problem was that I used bibtex and no "biber" to compile my latex file. I found an answer on SO:

From the topmenu: Build/Define Output Profiles/

Path to bibtex executable: "fill in location of biber.exe"

Command line arguments to pass to Bibtex: "%bm" (is same as main file's full path without extension)

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