[Boost-users] [Boost.Serialization] shared_ptr compile-time error.

Hi, I receive a compile time error when I try to serialize shared_ptr<string> in my class. Here are the relevant parts of this class: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 #include <boost/serialization/base_object.hpp> #include <boost/serialization/shared_ptr.hpp> #include <boost/serialization/string.hpp> class chunk_data : public chunk_metadata { public: chunk_data(std::string s); chunk_data( chunk_metadata metadata, boost::shared_ptr<std::string> data_ptr); chunk_data( boost::filesystem::path path, chunk_metadata::cuid_type chunk_id); chunk_data( boost::filesystem::path path, chunk_metadata::cuid_type chunk_id, boost::shared_ptr<std::string> data_ptr); virtual ~chunk_data(); template <typename Archive> void serialize(Archive& ar, const unsigned int version) { boost::serialization::base_object<chunk_metadata>(*this); ar & data_ptr_; } boost::shared_ptr<std::string> data_ptr_; }; /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 And here are the relevant parts from compilation error. invalid application of ‘sizeof’ to incomplete type ‘boost::STATIC_ASSERTION_FAILURE<false>’ error: ‘struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >’ has no member named ‘serialize’ I haven't found any relevant hints about this error neither in the documentation or on the boost mailing list. Also I've attached the compilation log. I would really appreciate any help. -Vjeko