I have written a little essay and tried to add a bibliography. I get all kinds of errors and searched the last 5 hours for solutions, only to find out how little I know about latex...
I am using Miktex and Texmaker. I made a simple version of my .tex file to post here:
\documentclass[]{article}
\usepackage[autostyle]{csquotes}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{biblatex}
\addbibresource{referenzen}
\begin{document}
\section{Introduction}
Lorem ipsum \cite{dirac}
\printbibliography
\end{document}
Bib file:
@article{valueSensitiveDesign,
author = {Friedman, Kahn et al},
title = {Value Sensitive Design},
year = "2008"
}
@book{dirac,
title = {The Principles of Quantum Mechanics},
author = {Paul Adrien Maurice Dirac},
isbn = {9780198520115},
series = {International series of monographs on physics},
year = {1981},
publisher = {Clarendon Press},
keywords = {physics}
}
@article{Lee2009a,
author = {Lee, Geun},
journal = {The Korean Journal of Defense Analysis},
number = {2},
pages = {205--218},
title = {{A Theory of Soft Power and Korea's Soft Power Strategy}},
volume = {21},
year = {2009}
}
I've setup Texmaker to do 'pdflatex > show pdf'. But then the bibliography is not printed. I researched this and people say that you need to 'latex > biblatex > latex 2x > show pdf', but I don't have that. I have similar options, but the I get the error:
This is BibTeX, Version 0.99d (MiKTeX 20.6.29) The top-level auxiliary file: prototype.aux I found no \citation commands---while reading file prototype.aux I found no \bibdata command---while reading file prototype.aux I found no \bibstyle command---while reading file prototype.aux (There were 3 error messages)
Texmaker doesn't seem to give me an option to do it the correct way (and this gets way to complicated for me). Here is a screenshot of my configuration options (sorry it's in German):
My problem seems to be so simple, but I feel like a need to do a full latex tutorial to get any idea what I m doing. I feel like there might be some conflicting packages. Can anyone please explain whats going on here?

.bibfile with file extension in\addbibresource. So *\addbibresource{referenzen}should quite probably be\addbibresource{referenzen.bib}. Other than that, Ulrike is right, your editor appears to be configured to run BibTeX, but you need Biber, see https://tex.stackexchange.com/q/154751/35864. – moewe Aug 10 '20 at 16:59\usepackage{biblatex}to\usepackage[backend=bibtex]{biblatex}and to select the second option from the drop-down menu. – Mico Aug 10 '20 at 17:00author = {Friedman, Kahn et al},is bad input. Ideally you would give all authors and separate names withand:author = {Batya Friedman and Peter H. Kahn and Alan Borning},(not sure if that is the same paper). You should also look into adding more bibliographic data to the entry. IfvalueSensitiveDesignis really an@article, it should have ajournal,volumeandpagesfield. It may also have adoi. – moewe Aug 10 '20 at 17:04authorfield of thevalueSensitiveDesignentry:author = {Friedman, Kahn et al}won't throw an error message, but it's wrong nevetheless, as the field will get parsed as having an author with surnameFriedmanand given nameKahn. Inauthorandeditorfields, the keywordand, not the comma symbol, is used to separate individual authors. – Mico Aug 10 '20 at 17:11biberis definitely far more versatile than bibtex. (backend=biberis the default.) But if your inputs are all ASCII-encoded and you don't need to modify some fairly basic style, BibTeX will do OK too. – Mico Aug 10 '20 at 17:13biblatex's features. BibTeX can still be used withbiblatex, but that is only considered legacy support. There is practically no advantage in using BibTeX over Biber, if you can get Biber to work (as you did). – moewe Aug 10 '20 at 17:18