Font non presente

Ho provato a compilare questo codice (di una mia amica)

`
% arara: xelatex
% arara: biber
% arara: xelatex: {synctex: on}
% arara: clean: {files: [Beamer_PEL.aux,Beamer_PEL.bbl,Beamer_PEL.bcf,Beamer_PEL.blg,Beamer_PEL.log,Beamer_PEL.nav,Beamer_PEL.out,Beamer_PEL.run.xml,Beamer_PEL.snm,Beamer_PEL.toc,Beamer_PEL.vrb]}
\documentclass[8pt,t,aspectratio=1610]{beamer}
\usetheme[]{PEL}

\addbibresource{Beamer_PEL.bib}

\usepackage{grid-system}

\author{\textbf{Student name}}
\title{Title of\\the project}
\institute[Power Electronics Laboratory]{École Polytechnique Fédérale de Lausanne\\ Power Electronics Laboratory\\ Switzerland}
\date{\today}

\renewcommand{\myevent}{Mid Term Presentation}
\renewcommand{\myeventlogo}{}

\begin{document}

\begin{frame}{Slide \#1}
blabla
\end{frame}

\begin{frame}{Slide \#2}
blabla
\end{frame}

\begin{frame}{Slide \#3}
blabla
\end{frame}

\begin{frame}{Slide \#4}
blabla
\end{frame}

\begin{frame}{Slide \#5}
blabla
\end{frame}

\end{document}
`

compilando con XeLaTeX mi compare questo errore:

! fontspec error: “font-not-found”
!
! The font “RobotoMono-Light” cannot be found.
!
! See the fontspec documentation for further information.

Nella cartella del file .tex sono presenti altri file e delle cartelle. In una di queste ci sono i font necessari (almeno credo).
Non capisco dove sia il problema.
Non si risolve neanche aggiungendo pacchetti 🙂