I'm having some troubles with my beamer presentation. When I insert any equation that involves letters (either greek or latin), My compilation fails. It doesn't matter whether I'm doing this in equation environment or between $$. I just don't what's happening, 'cause it should work normally. Here follows my simplified code:
\documentclass{beamer}
%
\usepackage[latin1]{inputenc}
\usepackage[brazil]{babel}
\usepackage{amsmath,array,amssymb}
\usepackage{graphicx,color}
\usepackage{bm}
\usetheme{Warsaw}
\setbeamertemplate{blocks}[rounded][shadow=true]
\definecolor{orange}{rgb}{1.0,0.647,0.0}
\definecolor{darkorange}{rgb}{1.0,0.546,0.0}
\definecolor{sienna}{rgb}{0.627,0.321,0.176}
\definecolor{navy}{rgb}{0.0,0.0,0.50}
\definecolor{darkred}{rgb}{0.9,0,0}
\title[Blabla]{\mbox{}\\ \vspace{0.1cm} Blabla \vspace{0.5cm} }
\date{\color{navy} Blabla}
\author[bla, \\ bla]{{ \footnotesize \underline{blabla}, blabla} }
\institute{blabla}
\subject{????}
\begin{document}
\begin{frame}
\frametitle{A abordagem perturbativa}
\framesubtitle{}
Partindo da métrica na forma
\begin{equation}
ds^{2} = -h(r) dt^{2} + h(r)^{-1} dr^{2}+r^{2}(d\theta^{2}+\sin^{2}\theta d\phi^{2})
\end{equation}
\end{frame}
\end{document}
The error message displayed at the end of the process was:
Running miktex-makemf.exe... miktex-makemf: The mathkerncmssi source file could not be found.
Running ttf2pk.exe... miktex-makepk: PK font mathkerncmssi10 could not be created.
LaTeX Font Warning: Size substitutions with differences (Font)
up to 1.0pt have occurred.) (see the transcript file for additional information) !pdfTeX error: pdflatex.exe (file mathkerncmssi10): Font mathkerncmssi10 at 657 not found ==> Fatal error occurred, no output PDF file produced!
Thanks for supporting!
