Hi, I am trying to create a ClassX using "boost::multi_index" and I was successfully able to create a ClassX like, typedef boost::multi_index_ClassX< ClassX*, boost::multi_index::indexed_by< boost::multi_index::hashed_unique< boost::multi_index::const_mem_fun, boost::multi_index::const_mem_fun,

MultiIndexedClassX;

This compiles perfectly with no problems. I am writing the code and compiling with Visual Studio 2005 and have included, #include #include "boost/multi_index/hashed_index_fwd.hpp" #include and have defined namespaces, using namespace boost::multi_index; using boost::multi_index::multi_index_container; using boost::multi_index::hashed_unique; using boost::multi_index::indexed_by; But when I create an object of that type like, MultiIndexedClassX sample; I get a big list compilation errors like, *c:\code\common\lib\boost\boost\multi_index\detail\node_type.hpp(44) : error C2903: 'node_class' : symbol is neither a class template nor a function template* * c:\code\common\lib\boost\boost\mpl\aux_\preprocessed\plain\apply_wrap.hpp(49) : see reference to class template instantiation 'boost::multi_index::detail::index_node_applier::apply' being compiled* * with* * [* * IndexSpecifierIterator=boost::mpl::v_iter,boost::multi_index::const_mem_fun>>,0>,* * Super=boost::multi_index::detail::index_node_base>* * ]* * c:\code\common\lib\boost\boost\mpl\aux_\preprocessed\plain\bind.hpp(207) : see reference to class template instantiation 'boost::mpl::apply_wrap2' being compiled* * with* * [* * F=boost::multi_index::detail::index_node_applier,* * T1=boost::mpl::v_iter,boost::multi_index::const_mem_fun>>,0>,* * T2=boost::multi_index::detail::index_node_base>* * ]* * c:\code\common\lib\boost\boost\mpl\aux_\preprocessed\plain\apply_wrap.hpp(49) : see reference to class template instantiation 'boost::mpl::bind2::apply' being compiled* * with* * [* * F=boost::multi_index::detail::index_node_applier,* * T1=boost::mpl::_2,* * T2=boost::mpl::_1,* * U1=boost::multi_index::detail::index_node_base>,* * U2=boost::mpl::v_iter,boost::multi_index::const_mem_fun>>,0>* * ]* * c:\code\common\lib\boost\boost\mpl\aux_\preprocessed\plain\apply.hpp(63) : see reference to class template instantiation 'boost::mpl::apply_wrap2' being compiled* * with* * [* * F=boost::mpl::bind2boost::multi_index::detail::index_node_applier,boost::mpl::_2,boost::mpl::_1,* * T1=boost::multi_index::detail::index_node_base>,* * T2=boost::mpl::v_iter,boost::multi_index::const_mem_fun>>,0>* * ]* * c:\code\common\lib\boost\boost\mpl\aux_\preprocessed\plain\reverse_iter_fold_impl.hpp(58) : see reference to class template instantiation 'boost::mpl::apply2' being compiled* * with* * [* * F=boost::mpl::bind2boost::multi_index::detail::index_node_applier,boost::mpl::_2,boost::mpl::_1,* * T1=boost::multi_index::detail::index_node_base>,* * T2=boost::mpl::v_iter,boost::multi_index::const_mem_fun>>,0>* * ]* Thanks, Ram