During this morning, while I was compiling my code a new error appeared like this:
!Missing \endcsname inserted
<to be read again>
\protected
1.6.8....og\'ia \textit{Cook-Chill}}{{1.3.1}{37}}
the same for 1.6.8....og\'ia \textit{Sous-Vide}}{{1.3.1}{37}}
well, I think this error appeared since I am wrinting my thesis in spanish and put some specific combinated words in diferent language
tecnolog\'ia Cook-Chill( spanish and english) and tecnolog'ia Sous vide ( spanish and french). Even though, I can 't clearly understanding why in my output pdf file this sentence{Cook-Chill}}{{1.3.1}{37}} on the firt page was written .
This is the a little part of my preamble:
\documentclass[a4paper,12pt,twoside]{book}
\usepackage[spanish,activeacute]{babel} % Utiliza los nombres de figuras, etc. En el idioma que se quiera
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}% Permite utilizar acentos, �s, etc
\usepackage{amsmath}
\usepackage{boldtensors}
\usepackage{color}
.....
Thanks in advanced! sorry for calling help on sunday

BUBAMARA