My citations in Biblatex do not appear and a "ç" appear when not needed

Question

The "C" appears as a "Ç", and my citations do not appear.

    \documentclass[10pt]{article}
    \usepackage[utf8]{inputenc}
    \usepackage[spanish]{babel}
    %\usepackage{amssymb}

    \usepackage[
    style=alphabetic,
    bibencoding=utf8,
    sorting=ynt
    ]{biblatex}
    %\defbibenvironment{bibliography}
    \addbibresource{biblio.bib}

    \pagestyle{empty}
    \voffset-3cm

    \title{Resumen:\\Clasificaci\'on de  usando Redes Neuronales Convolucionales}
    \date{13 de Junio del 2017}
    \begin{document}
    \maketitle
    \thispagestyle{empty}

    Se realizar\'an diferentes analisis sobre cromatograf\'ias de suelo. Las "Cromatograf\'ias en Filtro Redondo de Pfeiffer"\cite{folla}. Este\cite{croma}.

    \nocite{*}
    \printbibliography[env=bibliography]
    \end{document}

The .bib file is placed at the main document's directory, as well.

The Ç is because you use "C which is a short-hand command from the babel package. See this question for how to produce proper quotations marks in the output. Please also provide the contents of your .bib file. Your can Insert the file in this document using the filecontents package. — siracusa, Jun 14 '17 at 05:12
You will need to run Biber. See Question mark or bold citation key instead of citation number as well as Biblatex with Biber: Configuring my editor to avoid undefined citations. If you have run Biber you should be able to find a .blg file. If you still have problems after running LaTeX -> Biber -> LaTeX -> LaTeX, please show us the .blg file. — moewe, Jun 14 '17 at 09:27

Mico · Answer 1 · 2017-06-14T09:17:25.967

Don't use "dumb" quotation marks -- " -- to quote a word or passage in a TeX or LaTeX document. This gets you in trouble with babel's setting of using " to initiate various typing shortcuts. Instead, either use "smart" quotation marks, viz.,

`` and ''

or load the csquotes package (with language option spanish=spanish or spanish=mexican, as appropriate) and write

\enquote{Cromatograf\'ias en Filtro Redondo de Pfeiffer}

in the body of the document.

About your citations not appearing: After running LaTeX, did you run biber followed by an additional LaTeX run?

\documentclass[10pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[spanish]{babel}
\usepackage[spanish=mexican]{csquotes}
%\usepackage{amssymb}

\usepackage[
   style=alphabetic,
   bibencoding=utf8,
   sorting=ynt
   ]{biblatex}
%\defbibenvironment{bibliography}
\addbibresource{biblio.bib}

\pagestyle{empty}
\voffset-3cm

\title{Resumen:\\Clasificaci\'on de  usando\\Redes Neuronales Convolucionales}
\date{13 de Junio del 2017}
\begin{document}
\maketitle
\thispagestyle{empty}

Se realizar\'an diferentes analisis sobre cromatograf\'ias de suelo. 
Las \enquote{Cromatograf\'ias en Filtro Redondo de Pfeiffer} \cite{folla}. 
Este \cite{croma}.

\nocite{*}
\printbibliography[env=bibliography]
\end{document}

My citations in Biblatex do not appear and a "ç" appear when not needed

1 Answers1