# undefined control sequence: problem with \printbibliography

I have used \cite and \footfullcitation, now both in text and in footnote, they have been cited as the bibtexkey which I have chosen in Jabref.

It looks like(in footnote):

1 bibtexkey

It should look like (or something similar) (in footnote):

1 Author.bookname.publisher.pp.10-23

It looks like (in text):

[bibtexkey]1

It should look like(in text):

[1]

Question 2: And How can I reduce the space between the information in citation? Or how can I choose which information (author and bookname only,for example) I want to keep partial citation information in footnote but full citation in bibliography?

It looks like(in footnote):

1 author. (big space) articlename. (big space) [Accessed on 24.11.2016]. (big space) Available on:www.google.com/...

It should look like:

Question 3: TexMaker produces no bibliography in the end of my text, I have no idea why (these 3 questions come with my complete script.)

My shorten script is under (with the shorter script have the 2 following errors(which you might not regenerate, I have no idea why...):

! pdfTeX error (font expansion): auto expansion is only possible with scalable fonts. <to be read again> \endgroup \set@typeset@protect l.28 \end{document}

! ==> Fatal error occurred, no output PDF file produced!


Code:

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\bibliographystyle{IEEEtran}
\usepackage[backend=bibtex,
style=authoryear,
natbib=true,
style=numeric-comp
]{biblatex}
\usepackage{csquotes}
\usepackage{blindtext}
\usepackage{microtype}

\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@book{ASH,
author = {Seiffert, U. and Wech, L.},
year = {2003},
title = {Automotive Safety Handbook},
}
\end{filecontents*}

\begin{document}
\blindtext \cite{ASH}

\printbibliography

\end{document}

• do you get the stated error message from the code as posted? I do not even if I fix it to look for \jobname.bib rather than Bib.bib Nov 24 '16 at 19:15
• i get a bibtex error Illegal, another \bibstyle command---line 3 of file xxx.aux Nov 24 '16 at 19:16
• I do deleted many lines in order to shorten the script. I can update the post and post the complete version . @DavidCarlisle Nov 24 '16 at 19:23
• Do not post a big file post the smallest file you can _that generates the error, Just keep deleting things and check at each stage that you still get the error (remove your .bbl file each time before trying) Nov 24 '16 at 19:25
• Have you tried the new file? it tries to input Bib.bib which isn't generated (unless the file is Bib.tex) it then generates the error ! Undefined control sequence. l.56 \blindtext it does not generate the error in the question. Nov 24 '16 at 19:30

The code posted produces a a bibtex error about duplicate style (not the tex error shown in the question) that can be fixed by commenting out the extra style specification:

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{blindtext}
\usepackage{microtype}
\usepackage[utf8]{inputenc}
%\bibliographystyle{IEEEtran}
\usepackage[outdir=./]{epstopdf}
\usepackage[backend=bibtex,
style=authoryear,
natbib=true,
style=numeric-comp
]{biblatex}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@book{ASH,
author = {Seiffert, U. and Wech, L.},
year = {2003},
title = {Automotive Safety Handbook},
}
\end{filecontents*}