我是使用 Boost 序列化的新手。我正在使用 xml 序列化和非侵入式版本。我一步一步地按照教程（来自 Boost 网站）进行操作，我的代码运行良好。
当我将我的类（代码分为 .h 和 .cpp 以及一个 main.cpp 文件）放在命名空间(ns_mytests) 中时，问题就出现了。在这种情况下，编译器（g++）会抱怨，我有以下错误：
g++ -c -g test.o.d -o build/Debug/GNU-Linux-x86/sources/test.o sources/test.cpp
/opt/local/include/boost/serialization/split_free.hpp: In static member function 'static void boost::serialization::free_saver<Archive, T>::invoke(Archive&, const T&, unsigned int) [with Archive = boost::archive::xml_oarchive, T = ns_mytests::Test]':
/opt/local/include/boost/serialization/split_free.hpp:74: instantiated from 'void boost::serialization::split_free(Archive&, T&, unsigned int) [with Archive = boost::archive::xml_oarchive, T = ns_mytests::Test]'
sources/test.h:117: instantiated from 'void boost::serialization::serialize(Archive&, ns_mytests::Test&, unsigned int) [with Archive = boost::archive::xml_oarchive]'
/opt/local/include/boost/serialization/serialization.hpp:128: instantiated from 'void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::xml_oarchive, T = ns_mytests::Test]'
/opt/local/include/boost/archive/detail/oserializer.hpp:148: instantiated from 'void boost::archive::detail::oserializer<Archive, T>::save_object_data(boost::archive::detail::basic_oarchive&, const void*) const [with Archive = boost::archive::xml_oarchive, T = ns_mytests::Test]'
sources/test.cpp:146: instantiated from here
/opt/local/include/boost/serialization/split_free.hpp:45: error: no matching function for call to 'save(boost::archive::xml_oarchive&, const ns_mytests::Test&, const boost::serialization::version_type&)'
make[2]: *** [build/Debug/GNU-Linux-x86/sources/test.o] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
可以肯定我做错了什么，但我找不到我的错误。
任何帮助表示赞赏。
谢谢，西叉