file name with spaces.tex

\documentclass{article}

\usepackage{biblatex}

\addbibresource{biblatex-examples.bib}

\begin{document}

\nocite{*}

\printbibliography

Resulting in a file .bcf file: \verb|file_name_with_spaces.bcf|

When biber is run:

\begin{verbatim}
Running `Biber' on `file name with spaces' with ``biber file\ name\ with\ spaces''
INFO - This is Biber 2.11
INFO - Logfile is 'file name with spaces.blg'
ERROR - Cannot find control file 'file name with spaces.bcf'! - Did latex run successfully on your .tex file before you ran biber?
INFO - ERRORS: 1
\end{verbatim}

Most editors I know will assume the names of the auxiliary files (.bcf among them)
from the name of the .tex file. Of course, we could run biber on
\verb|file_name_with_spaces|, but that would seriously hinder the workflow
usually assumed by the editors. Notice this example does not produce a
bibliography (I think, because the .bbl file is also not found).

\end{document}

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