[Tex/LaTex] Set default sans serif font in XeLaTeX

Question

How can I set the default sans serif font to the default in this example in XeLaTeX? I can only get Helvetica with

\documentclass{article}

\usepackage[a4paper,margin=5pt]{geometry}

\usepackage{fontenc}
\usepackage{times,multicol,graphicx}
\usepackage[usenames,dvipsnames]{color}
\pagestyle{empty}

\begin{document}

and I get an error if I use \setsansfont{CMU Sans Serif} in the preamble.

Answer 1

You can use Latin Modern Sans Serif:

\documentclass{article}

\usepackage{fontspec}
\setsansfont{Latin Modern Sans}

\begin{document}
\textsf{A simple example}
\end{document}