# Problems with biblatex and TexMaker [duplicate]

Here is my code:

\documentclass[a4paper,twoside]{book}

\usepackage[utf8]{inputenc}
\usepackage[titletoc]{appendix}
\usepackage[english]{babel}
\usepackage{csquotes}
\usepackage{lmodern}
\usepackage{comment}
\usepackage{makeidx}
\usepackage{bm}

\usepackage[usenames,dvipsnames]{xcolor}
\usepackage[protrusion=true,expansion=true]{microtype}
\usepackage{graphicx}
\DeclareGraphicsExtensions{.pdf}
\usepackage[font=small,labelfont=bf]{caption}
\usepackage{wrapfig}
\usepackage{float}
\usepackage[bottom]{footmisc}
\usepackage{multirow}
\usepackage[multidot]{grffile}
\usepackage{subcaption}

\usepackage{geometry}
\geometry{a4paper,top=2.5cm,bottom=2.5cm,left=2.5cm,right=2.5cm}

\usepackage{lipsum}
\usepackage[24hr]{datetime}
\usepackage{titlesec,titletoc}
\usepackage{hyperref}
\usepackage{amsmath}
\usepackage{amsfonts}

\graphicspath{{graphs_folder/}}

\usepackage[
backend=biber,
natbib=true,
style=numeric,
sorting=none
]{biblatex}

\begin{document}
Hello.I want to cite \cite{braitenberg2013anatomy} and
\cite{hebb2005organization}

\backmatter
\cleardoublepage

\printbibliography

\end{document}


I'm on Ubuntu 14.04, I'm using TexMaker 4.1 and I did what suggested here

However:

when I try to run the compiler with PDFLaTeX option, I obtain

line 50: Empty bibliography
line 1: There were undefined references
line 1: Please (re)run Biber on the file:(biblatex) and rerun LaTeX afterwards


I think is important to tell you that when I run quick build it should go through the whole process and showing me the pdf. Instead, it ends with

Error:could not start the command


and doesn't show anything. The same message appears if I use the BibTeX option of the compiler.

If I open the pdf manually, I can't find the bibliography and the citations are like

[braitenberg2013anatomy] and [hebb2005organization]

while what I need is

[1] and [2]

(note that I need them to be sorted as they appear).

What is wrong with my code?

## marked as duplicate by moewe biblatex StackExchange.ready(function() { if (StackExchange.options.isMobile) return; $('.dupe-hammer-message-hover:not(.hover-bound)').each(function() { var$hover = $(this).addClass('hover-bound'),$msg = $hover.siblings('.dupe-hammer-message');$hover.hover( function() { $hover.showInfoMessage('', { messageElement:$msg.clone().show(), transient: false, position: { my: 'bottom left', at: 'top center', offsetTop: -7 }, dismissable: false, relativeToBody: true }); }, function() { StackExchange.helpers.removeMessages(); } ); }); }); Aug 11 '17 at 8:21

• Have a look at Biblatex with Biber: Configuring my editor to avoid undefined citations and compare your settings. Can you call Biber from the command line? Can you try and compile everything from the command line? (pdflatex test, biber test, pdflatex test, pdflatex test assuming your .tex file is called test.tex) See also Troubleshooting for biber. Is there a .blg file? Can you post its contents here? – moewe Aug 8 '17 at 16:17
• Welcome to TeX.SE! Please add the two bib entrys for braitenberg2013anatomy and hebb2005organization to your question ... – Mensch Aug 8 '17 at 16:20

biber test