##  Class files

The frontespizio package typesets a frontispiece in a style suitable for a thesis at an Italian university. It produces the frontispiece as a separate PDF, which is then included back into the main project. This means that a special compile step is required, in order to build the frontispiece. To achieve this on Overleaf, you can use \write18 to start the compile, like this: \begin{frontespizio} \Istituzione{Politecnico di Torino} % ... your other information here \end{frontespizio} \IfFileExists{\jobname-frn.pdf}{}{% \immediate\write18{pdflatex \jobname-frn}} If the compile of the frontispiece fails, you can use the listings package and then put \lstinputlisting{main-frn.log} after the code above to get the log file into your main project, where you can read it and find the issue.