Newbie: typle_basic.hpp gives compilation error.

(Trying to use the tuple function for the first time.) When adding #include "boost/tuple/tuple_comparison.hpp" a compilation gives the following errors: [C++ Error] tuple_basic.hpp(158): E2434 Template declaration missing template parameters ('template<...>') [C++ Error] tuple_basic.hpp(158): E2238 Multiple declaration for 'element<N,T>' [C++ Error] tuple_basic.hpp(143): E2344 Earlier declaration of 'element<N,T>'