# Latex Error: Command crashed: biber.exe

I am getting an error when running Bibliography on Windows 10, using MikTex 2.9 and TexStudio 2.10, running biblatex 3.1 and biber 2.2, all 64 bit.

Process started: biber.exe "MWE"
Error: Command crashed: biber.exe "MWE"
Process exited with error(s)


In the log file are the following errors:

Package biblatex Info: Trying to load bibliographic data...
No file MWE.bbl.
Package biblatex Info: Reference section=0 on input line 10.
Package biblatex Info: Reference segment=0 on input line 10.
LaTeX Warning: Citation 'john' on page 1 undefined on input line 11.
LaTeX Warning: Empty bibliography on input line 12.


I am running the following code:

\documentclass{article}
\begin{filecontents*}{bibliography.bib}
@book{john,
author  = {John Johnson},
title   = {Booktitle},
year    = {2016}
}
\end{filecontents*}
\usepackage[backend=biber]{biblatex}
\begin{document}
Hello\cite{john}.
\printbibliography
\end{document}


I also tried running from the command line:

biber --tool MWE.bib


Which gives me the following error:

The procedure entry point Perl_gv_fetchpv could not be located in the dynamic link library


Removing the par-726f676965 folder doesn't help either.

Any ideas?

• Did it start crashing suddenly? Sometimes it does that and I always reinstall. I wish to know why too. – percusse Jan 8 '16 at 9:25
• You could get biber from here: sourceforge.net/projects/biblatex-biber/files/biblatex-biber/… and check if this crash too (either replace the miktex biber or put the biber.exe somewhere in the path where it is found first, or rename the biber.exe to e.g. bibernew.exe and use this). If it crashes too you know that it is not miktex and you can make a bug report on the biber site. – Ulrike Fischer Jan 8 '16 at 9:53
• @percusse Yes, it did crash suddenly. A complete MikTex reinstall was indeed the solution. – rogier Jan 8 '16 at 10:27
• @UlrikeFischer I was trying a reinstall. Therefore I was not able to try your solution. Fortunately the reinstall worked. – rogier Jan 8 '16 at 10:28
• I;m having the same problem here, reinstalled TexLive on windows 10, still got the error. The sourceforge page has no forum or bugs reported, seems like they moved to GiHub (github.com/plk/biber/issues)... I will google more and try other stuff before reporting. – G. Bay May 30 '16 at 3:40

Just change the used filename for your bib file from \bibliography.bib to bibliography.bib. The \ starts a command \bibliography causing your error.

The following MWE compiles with no errors with my current miktex:

\documentclass{article}
\begin{filecontents*}{bibliography.bib} % <================================
@book{john,
author  = {John Johnson},
title   = {Booktitle},
year    = {2016}
}
\end{filecontents*}

\usepackage[backend=biber]{biblatex}