Bibliografia con memoir

Ciao a tutti,

sto cercando di far compilare la bibliografia (con la classe [tt]memoir[/tt]). Se uso questo preambolo:
`\documentclass[a4paper,11pt,extrafontsizes,twoside,openright]{memoir}

\usepackage{etextools}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[greek,italian]{babel}
\usepackage{microtype}

% Bibliografia
%\usepackage[babel,italian=guillemets]{csquotes}
%\usepackage[style=alphabetic]{biblatex}
%\bibliography{bibliografia}

% Colori
\usepackage{xcolor}

% Figure
\usepackage{graphicx}

% Indici
\usepackage{framed}
\usepackage{titletoc}

\renewcommand{\cftchapterfillnum}[1]{\nobreak\hspace{1.5em}\textbf{#1}\cftparfillskip\par}
\renewcommand{\cftsectionfillnum}[1]{\nobreak\hspace{1.5em}#1\cftparfillskip\par}
\renewcommand{\cftsubsectionfillnum}[1]{\nobreak\hspace{1.5em}#1\cftparfillskip\par}
\renewcommand{\cftsubsubsectionfillnum}[1]{\nobreak\hspace{1.5em}#1\cftparfillskip\par}
\renewcommand{\cftfigurefillnum}[1]{\nobreak\hspace{1.5em}#1\cftparfillskip\par}
\renewcommand{\cfttablefillnum}[1]{\nobreak\hspace{1.5em}#1\cftparfillskip\par}

% Lipsum
\usepackage{lipsum}

% Matematica
\usepackage{amssymb,amsmath,amsthm}
\usepackage{mathrsfs,eucal,dsfont}

% Riferimenti automatici
\usepackage[italian]{varioref}

% SI delle misure
\usepackage[decimalsymbol=comma]{siunitx}
\sisetup{detect-display-math=true}

% Tabelle
\usepackage{multicol}
\usepackage{multirow}
\usepackage{longtable}

% TikZ
\usepackage{tikz}
% Librerie
\usetikzlibrary{arrows}
\usetikzlibrary{backgrounds}
\usetikzlibrary{calc}
\usetikzlibrary{intersections}
\usetikzlibrary{positioning}
\usetikzlibrary{shadows}
\usetikzlibrary{shapes}
\usetikzlibrary{through}

% URL
\usepackage{url}

% Riferimenti ipertestuali
\usepackage{hyperref}
\hypersetup{pdfborder=0 0 0,pdfstartpage=1,pdftitle={},pdfauthor={Marco},hidelinks}

\begin{document}

\tableofcontents*
\pagenumbering{roman}

\chapter{Titolo del primo capitolo}
\pagenumbering{arabic}
\section{Prima section}
\lipsum[1-7]
\section{Seconda section}
\lipsum[1-4]
\subsection{Prima subsection della prima section}
\lipsum[1-3]

\chapter{Titolo del secondo capitolo}
\section{Terza section}
\lipsum[1-7]
\section{Quarta section}
\lipsum[1-4]
\subsection{Prima subsection della quarta section}
\lipsum[1-3]
%\cite{eco:tesi}
%
%\cleardoublepage
%\phantomsection
%\addcontentsline{toc}{chapter}{\bibname}
%\printbibliography

\end{document}`
la compilazione termine senza alcun errore. Se però decommento le righe:
`…
%\usepackage[babel,italian=guillemets]{csquotes}
%\usepackage[style=alphabetic]{biblatex}
%\bibliography{bibliografia}
…
%\cite{eco:tesi}

%\cleardoublepage
%\phantomsection
%\addcontentsline{toc}{chapter}{\bibname}
…
%\printbibliography`
allora mi viene dato questo errore:

! File ended while scanning use of \ettl@forloop.
\par <*> prova.tex
I suspect you have forgotten a `}’, causing me
to read past where you wanted me to stop.
I’ll try to recover; but if the error is serious,
you’d better type `E’ or `X’ now and fix your file.
! Emergency stop.
<*> prova.tex
*** (job aborted, no legal \end found)
Here is how much of TeX’s memory you used:

Il documento bibliografia.bib contiene solo quanto segue:
`@book{eco:tesi,
author = {Eco, Umberto},
title = {Come si fa una tesi di laurea},
publisher = {Bompiani},
date = {1977},
location = {Milano}
}`
(l’ho copiato pari pari dall’Arte).

Cosa sbaglio?

Grazie mille e ciao,
Marco.