1>c:\program files (x86)\boost\include\boost-1_55\boost\bind\bind.hpp(192): error C2064: term does not evaluate to a function taking 0 arguments
1>          class does not define an 'operator()' or a user defined conversion operator to a pointer-to-function or reference-to-function that takes appropriate number of arguments
1>          c:\program files (x86)\boost\include\boost-1_55\boost\bind\bind_template.hpp(47) : see reference to function template instantiation 'void boost::_bi::list0::operator ()<F,boost::_bi::list1<const A1 &>>(boost::_bi::type<void>,F &,A &,int)' being compiled
1>          with
1>          [
1>              F=HelloWorld
1>  ,            A1=std::string
1>  ,            A=boost::_bi::list1<const std::string &>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(153) : see reference to function template instantiation 'void boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>::operator ()<std::string>(const A1 &)' being compiled
1>          with
1>          [
1>              A1=std::string
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(153) : see reference to function template instantiation 'void boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>::operator ()<std::string>(const A1 &)' being compiled
1>          with
1>          [
1>              A1=std::string
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(147) : while compiling class template member function 'void boost::detail::function::void_function_obj_invoker1<FunctionObj,R,T0>::invoke(boost::detail::function::function_buffer &,T0)'
1>          with
1>          [
1>              FunctionObj=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            R=void
1>  ,            T0=const std::string &
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(934) : see reference to function template instantiation 'void boost::detail::function::void_function_obj_invoker1<FunctionObj,R,T0>::invoke(boost::detail::function::function_buffer &,T0)' being compiled
1>          with
1>          [
1>              FunctionObj=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            R=void
1>  ,            T0=const std::string &
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(934) : see reference to class template instantiation 'boost::detail::function::void_function_obj_invoker1<FunctionObj,R,T0>' being compiled
1>          with
1>          [
1>              FunctionObj=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            R=void
1>  ,            T0=const std::string &
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(722) : see reference to function template instantiation 'void boost::function1<R,T0>::assign_to<Functor>(Functor)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            T0=const std::string &
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(722) : see reference to function template instantiation 'void boost::function1<R,T0>::assign_to<Functor>(Functor)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            T0=const std::string &
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(1070) : see reference to function template instantiation 'boost::function1<R,T0>::function1<F>(Functor,int)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            T0=const std::string &
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(1070) : see reference to function template instantiation 'boost::function1<R,T0>::function1<F>(Functor,int)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            T0=const std::string &
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(1124) : see reference to function template instantiation 'boost::function<Signature>::function<F>(Functor,int)' being compiled
1>          with
1>          [
1>              Signature=void (const std::string &)
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\function\function_template.hpp(1124) : see reference to function template instantiation 'boost::function<Signature>::function<F>(Functor,int)' being compiled
1>          with
1>          [
1>              Signature=void (const std::string &)
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\signals2\detail\slot_template.hpp(156) : see reference to function template instantiation 'boost::function<Signature> &boost::function<Signature>::operator =<F>(Functor)' being compiled
1>          with
1>          [
1>              Signature=void (const std::string &)
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\signals2\detail\slot_template.hpp(156) : see reference to function template instantiation 'boost::function<Signature> &boost::function<Signature>::operator =<F>(Functor)' being compiled
1>          with
1>          [
1>              Signature=void (const std::string &)
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>  ,            Functor=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\signals2\detail\slot_template.hpp(98) : see reference to function template instantiation 'void boost::signals2::slot<R (const std::string &),boost::function<Signature>>::init_slot_function<boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>>(const F &)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            Signature=void (const std::string &)
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          c:\program files (x86)\boost\include\boost-1_55\boost\signals2\detail\slot_template.hpp(98) : see reference to function template instantiation 'void boost::signals2::slot<R (const std::string &),boost::function<Signature>>::init_slot_function<boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>>(const F &)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            Signature=void (const std::string &)
1>  ,            F=boost::_bi::bind_t<boost::_bi::unspecified,HelloWorld,boost::_bi::list0>
1>          ]
1>          d:\projects\signals\signals.cpp(81) : see reference to function template instantiation 'boost::signals2::slot<R (const std::string &),boost::function<Signature>>::slot<HelloWorld>(const HelloWorld &)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            Signature=void (const std::string &)
1>          ]
1>          d:\projects\signals\signals.cpp(81) : see reference to function template instantiation 'boost::signals2::slot<R (const std::string &),boost::function<Signature>>::slot<HelloWorld>(const HelloWorld &)' being compiled
1>          with
1>          [
1>              R=void
1>  ,            Signature=void (const std::string &)
1>          ]