sqlite_orm

In file included from D:\libs\Facechat-master\doc\src\tutorial\dictionaryclient\Activator.cpp:7:0:
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h: In instantiation of 'auto& sqlite_orm::storage_impl<Ts>::get_impl() [with O = User; Ts = {}]':
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:2420:52:   required from 'auto& sqlite_orm::storage_t<Ts>::get_impl() [with O = User; Ts = {}]'
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:3738:37:   required from 'int sqlite_orm::storage_t<Ts>::insert(const O&) [with O = User; Ts = {}]'
D:\libs\Facechat-master\doc\src\tutorial\dictionaryclient\Activator.cpp:45:50:   required from here
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:1647:9: error: no return statements in function returning 'auto&'
         }
         ^
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:1647:9: note: only plain 'auto' return type can be deduced to 'void'
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h: In instantiation of 'auto& sqlite_orm::storage_t<Ts>::get_impl() [with O = User; Ts = {}]':
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:3738:37:   required from 'int sqlite_orm::storage_t<Ts>::insert(const O&) [with O = User; Ts = {}]'
D:\libs\Facechat-master\doc\src\tutorial\dictionaryclient\Activator.cpp:45:50:   required from here
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:2420:52: error: forming reference to void
             return this->impl.template get_impl<O>();
                                                    ^
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h: In instantiation of 'int sqlite_orm::storage_t<Ts>::insert(const O&) [with O = User; Ts = {}]':
D:\libs\Facechat-master\doc\src\tutorial\dictionaryclient\Activator.cpp:45:50:   required from here
D:/libs/Facechat-master/external/sqlite_orm/include/sqlite_orm/sqlite_orm.h:3738:38: error: forming reference to void
             auto &impl = get_impl<O>();
                                      ^