\printbibliography does to show anything

Question

I have a following problem. I would like to add list of references on the last frame. My code:

\documentclass[]{beamer}
% Class options include: notes, notesonly, handout, trans,
%                        hidesubsections, shadesubsections,
%                        inrow, blue, red, grey, brown
% Theme for beamer presentation.
\usepackage{beamerthemesplit} 
% Other themes include: beamerthemebars, beamerthemelined, 
%                       beamerthemetree, beamerthemetreebars
\usepackage{blindtext}
\usepackage{csquotes}
\usepackage[style=authoryear,sorting=none]{biblatex}
\addbibresource{Bibliography.bib}
\bibliography{Bibliography.bib}                         %bibliography database
\begin{document}
\section[Outline]{}
\begin{frame}
  \frametitle{Name}   % Insert frame title between curly braces
\begin{itemize}
    \item blabla \cite{ranson2014crime} 
  \end{itemize}
\end{frame}
\begin{frame}
    \printbibliography[title=References]
\end{frame}
\end{document}

Bibliography is in a file Bibliography.bib. I am able to cite, but no full bibliography is listed at the end:

How can I fix it please?