Beamer with Metropolis them: problem with Fira Font on MacOS

Question

I would like to do a beamer presentation using metropolis theme but am experiencing pb with Fira font.

I am with MacOs 10.13, and TexStudio.

I have checked these previous questions:

• Xelatex not recognizing some Fira fonts
• xelatex does not find Fira Sans using metropolis theme (beamer)
• How to set up the font Scheherazade for use with XeLaTeX?

but none of the solutions proposed solved my pb.

I have downloaded the demo (as zip) from Overleaf web site. As in this demo package, the metropolis sty files are sitting next to my .tex

I downloaded Fira font as explained here: https://gist.github.com/muammar/a5ffb635eb7f532346a8e777b847f8a7 and Fira font is under my user/Library/Fonts.

I compile with xeLatex.

Here is a test doc:

\documentclass[10pt]{beamer}

\usetheme[progressbar=frametitle]{metropolis}
\usepackage{appendixnumberbeamer}
\usepackage{pgfplots}
\usepackage{xspace}

\newcommand{\themename}{\textbf{\textsc{metropolis}}\xspace}
\setsansfont[BoldFont={Fira Sans}]{Fira Sans Light}
\setmonofont{Fira Mono}
\usepackage[sfdefault]{Fira Sans}

\title{Problem with Fira Sans}
\subtitle{test}
\date{}


\begin{document}

\maketitle

\begin{frame}{Test font}
 \sffamily Fira Sans
 \itshape Fira Sans Italic
 \bfseries Fira Sans Italic Bold
 \upshape Fira Sans Bold
 \scshape Fira Sans Bold Small-Caps
 \itshape Fira Sans Bold Italic Small-Caps
 \mdseries Fira Sans Italic Small-Caps
 \upshape Fira Sans Small-Caps

 \ttfamily
 Fira Mono
 \bfseries Fira Mono Bold
\end{frame}

\begin{frame}[fragile]{Font not working}

  The \themename theme is a Beamer theme with minimal visual noise
  inspired by the \href{https://github.com/hsrmbeamertheme/hsrmbeamertheme}    {\textsc{hsrm} Beamer
  Theme} by Benjamin Weiss.

  Enable the theme by loading

  \begin{verbatim}    \documentclass{beamer}
    \usetheme{metropolis}\end{verbatim}

  Note, that you have to have Mozilla's \emph{Fira Sans} font and XeTeX
  installed to enjoy this wonderful typography.
\end{frame}

\end{document}

When using explicitely the font (Test font), it works, but the full document does not take Fira.

One last point: the log file shows that texlive is being used:

LaTeX Info: Redefining \ttfamily on input line 13.

(/usr/local/texlive/2017/texmf-dist/tex/latex/fira/FiraSans.sty
 Package: FiraSans 2016/11/20 (Bob Tennent and autoinst) Style file for Fira     San...
...
Requested font "[FiraSans-Regular.otf]/OT" at 10.0pt
 -> /usr/local/texlive/2017/texmf-dist/fonts/opentype/public/fira/FiraSans-    Regu
 lar.otf
 \g__fontspec_family_FiraSans_int=\count297
Requested font "[FiraSans-Bold.otf]/OT" at 10.0pt
 -> /usr/local/texlive/2017/texmf-dist/fonts/opentype/public/fira/FiraSans-     Bold
 .otf
 Requested font "[FiraSans-RegularItalic.otf]/OT" at 10.0pt
  -> /usr/local/texlive/2017/texmf-dist/fonts/opentype/public/fira/FiraSans-     Regu
 larItalic.otf
 Requested font "[FiraSans-BoldItalic.otf]/OT" at 10.0pt
  -> /usr/local/texlive/2017/texmf-dist/fonts/opentype/public/fira/FiraSans-Bold
 Italic.otf
 .................................................
 . fontspec info: "defining-font"
 . 
 . Font family 'FiraSans(0)' created for font 'FiraSans' with options
 . [Ligatures = TeX,Scale = 1,Extension = .otf,Ligatures=TeX,Numbers =
 . {Proportional,OldStyle},UprightFont = *-Regular,ItalicFont =
 . *-RegularItalic,BoldFont = *-Bold,BoldItalicFont = *-BoldItalic].
 .  
 s fonts.

(sorry for the no so well formatted copy-and-paste).

Many thanks in advance for your help.

Answer 1

In case it can help others facing same problem:

What works was to copy the Fira Font files I had downloaded as indicated here in user/Library/Fonts to the place where tex was actually looking for them (indicated in the log), i.e. /texlive/2017/texmf-dist/fonts/opentype/public/fira.

As indicated by @samcarter, no need to have \setsansfont[BoldFont={Fira Sans}]{Fira Sans Light} \setmonofont{Fira Mono} \usepackage[sfdefault]{Fira Sans}, xeLatex does the job by itself.

Last word: it pays off to look at the log file to understand what happens, even if long!

Answer 2

If the metropolis theme is compiled with xelatex, it uses fira fonts per default. So there is no need to manually interfere with the font selection and risk problems. In fact the example compiles just fine if the three lines related to fonts are removed.

% !TeX TS-program = xelatex

\documentclass[10pt]{beamer}

\usetheme[progressbar=frametitle]{metropolis}
\usepackage{appendixnumberbeamer}
\usepackage{pgfplots}
\usepackage{xspace}

\newcommand{\themename}{\textbf{\textsc{metropolis}}\xspace}
%\setsansfont[BoldFont={Fira Sans}]{Fira Sans Light}
%\setmonofont{Fira Mono}
%\usepackage[sfdefault]{Fira Sans}

\title{Problem with Fira Sans}
\subtitle{test}
\date{}


\begin{document}

\maketitle

\begin{frame}{Test font}
 \sffamily Fira Sans
 \itshape Fira Sans Italic
 \bfseries Fira Sans Italic Bold
 \upshape Fira Sans Bold
 \scshape Fira Sans Bold Small-Caps
 \itshape Fira Sans Bold Italic Small-Caps
 \mdseries Fira Sans Italic Small-Caps
 \upshape Fira Sans Small-Caps

 \ttfamily
 Fira Mono
 \bfseries Fira Mono Bold
\end{frame}

\begin{frame}[fragile]{Font not working}

  The \themename theme is a Beamer theme with minimal visual noise
  inspired by the \href{https://github.com/hsrmbeamertheme/hsrmbeamertheme}    {\textsc{hsrm} Beamer
  Theme} by Benjamin Weiss.

  Enable the theme by loading

  \begin{verbatim}    \documentclass{beamer}
    \usetheme{metropolis}\end{verbatim}

  Note, that you have to have Mozilla's \emph{Fira Sans} font and XeTeX
  installed to enjoy this wonderful typography.
\end{frame}

\end{document}