BibTeX, biblatex and biber ⇒ can't make the bibliography ...

[paulosousa]

well I am doing something very very wrong... why am I getting those warnings ?

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[Johannes_B]

Can you please make the pics a bit smaller?

You aren't doing anything wrong.

the filecontents environment creates a new file \jobname.bib, this is your database and later read by biber. This file is created only once, hence the warning. You should not use filecontents for your real document.

csquotes is a package by the same author as biblatex. It's not relevant for the example, so i left it out.

Now comes the tricky part, all those citations are undefined as well as »Please run biber on the file«
Package biblatex writes the keys it needs to build citations and bibitems to an auxiliary file, which is later read by biber. Biber is an external program grabbing the stuff from the database and sorting it, writing another aux-file (bbl).

Biblatex later reads in this file in another pdflatex run, putting everything back together.
Please have a look at Setting up texmaker to use biber to see how to config texmaker.

[paulosousa]

Johannes, thanks for all your time and help. And sorry for the big images on previous message.
Now I am using http://tex.stackexchange.com/questions/ ... with-biber to configure TeXmaker on my mac
This is the configuration line I have for BibLatex in my TexMaker Preferences: "/usr/texbin/bibtex" %.aux
but I think I must have this "/usr/texbin/bibtex" %.bcf correct? How I must do it?

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[Johannes_B]

Just put biber % in there. I think the MacTeX installation was setting the PATH variable, so the program biber can be found by the OS. There is a post on the german site TeXwelt.de where you can see a screenshot just like yours, but with the right setting
Biber and TeXmaker
I guess you don't mind the german interface.

Please note the difference between BibTeX (the sorting tool developed since the 80's) and biber (the modern sorting tool).

[paulosousa]

thanks a lot, for now I think all works fine.