cventry using moderncv class

Question

I am quite new in LaTeX. Actually, I want to use cventry using moderncv class.

I faced with lots of errors while I am using multiple \cventry.

\section{Experience}

\subsection{Vocational}

\cventry{2009--2012}{Supervisor}{\textsc{Technical and Vocational Training organization 
(TVTO)}}{East Azarbaijan Branch, Iran}{}{Supervision of, Teaching Standards.}
\subsection{Civil engineering, Surveying and Architecture}
%------------------------------------------------

\cventry{2009--2012}{Writer}{\textsc{Technical and Vocational Training organization 
(TVTO)}}{Tehran, Iran}{}{Writing, Teaching Standards, in Geomatics.}

%------------------------------------------------

\subsection{Autodesk Civil design, Autodesk survey, Civil 3D, Road surveyor, Construction surveyor, Surveying with single channel GPS}

\cventry{2008--2010}{Lecturer}{Borj Azar Co.}{East Azarbaijan, Iran}{}{Training Surveying Instruments & digital Mapping.}  

\cventry{2008--2009}{Lecturer}{Klick Now}{East Azarbaijan, Iran}{}{Training Audesk Land Desktop.}  

\cventry{2008--2009}{Surveyor}{Borj Azar Co.}{East Azarbaijan, Iran}{}{Surveying of water and watershed management, drainage channals and irrigation water piping, Akhola project.}  

\cventry{2007--2008}{Surveyor}{Borj Azar Co.}{East Azarbaijan, Iran}{}{Surveying of Daryan Dam.}  

\cventry{2006--2007}{Surveyor and Cartograph}{Borj Azar Co.}{East Azarbaijan, Iran}{}{Surveying and cadastral mapping of Shabster.}

Could you explain me how I can use multiple \ceventry in context successively.

Answer 1

I have included some parts of the code to make the file compile. In future posts, it pays to have a minimal working example (MWE) that illustrates your problem. It will be much easier for members of the TeX.SX community to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}.

This should work.

\documentclass{moderncv}

\moderncvtheme[blue]{casual}%
\usepackage[utf8]{inputenc}%
\usepackage[scale=0.8]{geometry}%
\recomputelengths
\firstname{John}%
\familyname{Doe}%
\address{Here}{Somewhere}%
\phone{+1 234 567 890}% 
\email{john [at] mailmail.com}%

%----------------------------------------------------------------------------------
%            content
%----------------------------------------------------------------------------------
\begin{document}
\maketitle
\section{Experience}

\subsection{Vocational}

\cventry{2008--2010}{Lecturer}{Borj Azar Co.}{East Azarbaijan, Iran}{}{Training Surveying Instruments \& digital Mapping.}  

\end{document}

Rember that & is a special character in TeX. To use it, you have to put a backslash before it.