Change LaTeX Compiler in Overleaf

Sometimes, we may have to use TeX engine XeLaTeX to compile LaTeX document; for example, specify the typeface as Arial for the whole document¹ (the way of using XeLaTeX in TeXStudio can also be found in blog¹):

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\documentclass[a4paper]{article}
\usepackage[margin=1in]{geometry}

\usepackage{lipsum}

\usepackage[x11names]{xcolor}
\pagecolor{AntiqueWhite1}

\usepackage{fontspec}
\setmainfont{Arial}

\begin{document}
	\lipsum[1-8]
\end{document}

However, Overleaf uses pdfLaTeX as a default engine (the same as TeXStudio), so when running the above script, some errors will occur:

So at this time, we need to change TeX engine as XeLaTeX to solve this problem. Here is the method:

First, click Menu in the left top corner:

Then, change the compiler from pdfLaTeX to XeLaTeX in the Settings part:

Finally, recompile the document at this time, we’ll get a normal output:

Bingo~

References