I was working on a .tex file but as soon as I changed the .bib file it stopped working and it does not compile the file anymore. I am sure they are both in the same folder and I already used the same .bib file for other version of the paper. I am using Tex Studio and this is my code:
\documentclass[a4paper,12pt]{article}
...
%bibliography
\usepackage{natbib}
\bibliographystyle{unsrtnat}
...
\begin{document}
...
%bibliography
\bibliography{BiblioC1}
...
\end{document}
Thanks a lot