# “missing { inserted” what was the problem

I basically copy pasted an example from here Yet it won't compile. I would really appreciate some help here

\documentclass{article}
\usepackage{array}
\begin{document}
\begin{tabular}%
{>{\ttfamily\char‘\\}c>{$}c<{$}}
\multicolumn{1}{c}{Command} &
\multicolumn{1}{c}{Symbol}\\
\hline
alpha & \alpha\\
beta & \beta\\
gamma & \gamma
\end{tabular}
\end{document}


Yet it won't compile with an error message as described in the title. What did I do wrong

You have used ‘ that is U+2018 instead of an ascii  however you could have used \textbackslash rather than the \char` construct.