moderncv \glqq not working

Question

Why can \glqq not be used with moderncv?

For example you can use this:

https://github.com/mliu7/latex-moderncv

the problem is: using \glqqinside the \cventry leads to compilation error

! Undefined control sequence.

Anyone knows how to solve this?

As demanded, here a minimal working example:

\documentclass[11pt,a4paper,sans]{moderncv}

\usepackage{verbatim}

\moderncvstyle{classic}
\moderncvcolor{blue}

\usepackage[utf8]{inputenc}

\usepackage[scale=0.8]{geometry}

\firstname{name}
\familyname{name}
\begin{document}
\maketitle

\section{Education}
\cventry{2000--2010}{Some degree}
{
%\glqq
University of Narnia
%\grqq
}
{Some city, Some country}{}{}

\end{document}

uncomment \glqq to get minimal NOT working example.

Answer 1

Since you're asking for German quotes, I assume you want to write in German, but you can change this. The important fact is that you need to use babel.

\documentclass[11pt,a4paper,sans]{moderncv}

\usepackage{verbatim}
\usepackage[ngerman]{babel}

\moderncvstyle{classic}
\moderncvcolor{blue}

\usepackage[utf8]{inputenc}

\usepackage[scale=0.8]{geometry}

\firstname{name}
\familyname{name}
\begin{document}
\maketitle

\section{Education}
\cventry{2000--2010}{Some degree}
{
\glqq
University of Narnia
\grqq
}
{Some city, Some country}{}{}

\end{document}