Dunque il preambolo è abbastanza semplice:
`
\documentclass[12pt,a4paper,titlepage,twoside,openany,fleqn]{book}
\usepackage[T1]{fontenc}
\usepackage{microtype}
\usepackage[italian]{babel}
\usepackage[top=3.5cm,right=3.5cm,bottom=3cm,left=3cm]{geometry}
\usepackage{mathptmx}
\usepackage[scaled=0.90]{helvet}
\usepackage{indentfirst}
\usepackage{courier}
\usepackage[output-decimal-marker={,}]{siunitx}
\usepackage{amsmath}
\usepackage{amsbsy}
\usepackage{amssymb}
\usepackage{mathtools}
\usepackage{graphicx}
\usepackage{euscript}
\usepackage{psfrag}
\usepackage{fancybox}
\usepackage{ifthen}
\usepackage{fancyhdr}
\usepackage[font=small,labelfont=bf,labelsep=period]{caption}
\usepackage{enumerate}
\usepackage{emptypage}
\usepackage[section]{placeins}
\usepackage{afterpage}
\usepackage{theorem}
\usepackage{wrapfig}
\usepackage{booktabs}
\usepackage{lettrine}
\usepackage{enumitem}
\usepackage{tabularx}
\usepackage[nocomment,nochange]{optional}
\usepackage[dvipsnames]{xcolor}
\usepackage[sf,bf]{titlesec}
\usepackage{empheq}
\usepackage{listings}
\usepackage[pagebackref=true]{hyperref}
\usepackage[noadvisor]{frontespizio}
\usepackage{setspace}
\usepackage{url}
\usepackage{verbatim}
%\usepackage[italian]{varioref}
\usepackage{xparse}
\usepackage{sectsty}
\chapterfont{\color{MidnightBlue}}
\usepackage{subfigure}
\usepackage{imakeidx}
\makeindex[options=-s classic.ist, intoc]
\usepackage{hyperref}
\hypersetup{%
pdftitle={Physical Layer Security},
pdfauthor={Cristian Ridolfi},
pdfsubject={},
pdfpagemode={UseOutlines},
%bookmarksopen,
pdfstartview={FitH},
colorlinks,
linktocpage,
allcolors=MidnightBlue
}% fine delle impostazioni di hyperref
`
Non mi sembra che ci sia niente di strano in quanto a fine compilazione ricevo 0 errori e 0 warning :D:
Riccardo