El 16/09/2016 a las 14:44, Ram escribió:

Hi,

[...]

I am writing the code and compiling with Visual Studio 2005 and have included,

#include <boost/multi_index_container.hpp>

#include "boost/multi_index/hashed_index_fwd.hpp"

boost/multi_index/hashed_index_fwd.hpp forward declares, rather than defines, hashed
indices. Try using

#include <boost/multi_index/hashed_index.hpp>

HTH

Joaquín M López Muñoz