This may seem an easy problem to you but for me I am struggling with it!.I need a little help with adding references in my report. I am able to compile and get a pdf doc but my problem is how to cite. I used \cite{ref1} but it does connect with the .bib file. I am getting [ref1] instead of [1].
\documentclass[a4paper]{report}
\usepackage{graphicx}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
%\usepackage[style=authortitle-icomp]{biblatex}
\usepackage{lmodern}
\usepackage[backend=biber,bibencoding=latinl]{biblatex}
%\addbibresource{folder/references.bib}
\begin{document}
my report here
\printbibliography
\end{document}
% Here is the references.bib file in which I have the citation %both the main file and bib file are saved in the same folder
@book{ref1,
isbn = {3-662-45239-1},
title = {Scanning Probe Microscopy},
language = {eng},
author = {Voigtländer, Bert},
publisher = {Springer Berlin Heidelberg},
}


\cite{ref1}see a.o. https://en.wikibooks.org/wiki/LaTeX/Bibliography_Management but also the documetation of the biblatex packack – albert Oct 23 '18 at 14:45äinVoigtländerseems wrong. Nowadays most editors use UTF-8 instead oflatin1(ISO 8859-1). If the encoding of your.bibfile and your.texas declared with\usepackage[...]{inputenc}coincide, there is no need for thebibencodingoption. – moewe Oct 23 '18 at 14:49\addbibresource{references.bib}to tellbiblatexwhich file to look for. – Andrew Swann Oct 23 '18 at 14:49