how to serialize boost::uuids::uuid

I'm currently using boost::uuids::uuid in a project and I want to serialize objects containin boost::uuids::uuid. I tried the simple example below but I get an error: /usr/include/boost/archive/basic_text_oprimitive.hpp:92: error: no match for ‘operator<<’ in ‘((boost::archive::basic_text_oprimitive >*)this)->boost::archive::basic_text_oprimitive >::os << t’ I would really appriciate if someone could help me. ``` #include <fstream> #include <boost/uuid/uuid.hpp> #include <boost/uuid/uuid_generators.hpp> #include <boost/uuid/uuid_serialize.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> class classA { public: classA() : id(boost::uuids::random_generator()()) {} private: friend class boost::serialization::access; boost::uuids::uuid id; template <class Archive> void serialize(Archive& ar, const unsigned int version) { ar & id; } }; int main(void) { classA a; std::ofstream ofs("uuid.txt"); boost::archive::text_oarchive oa(ofs); oa << a; ofs.close(); return 0; } ```