UseTimestamp.qpb.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl google::protobuf::Timestamp::Timestamp(void)" (__imp_??0Timestamp@protobuf@google@@QEAA@XZ) referenced in function "public: class google::protobuf::Timestamp * __cdecl QtProtobufPrivate::QProtobufLazyMessagePointer<class google::protobuf::Timestamp>::get(void)const " (?get@?$QProtobufLazyMessagePointer@VTimestamp@protobuf@google@@@QtProtobufPrivate@@QEBAPEAVTimestamp@protobuf@google@@XZ)
UseTimestamp.qpb.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl google::protobuf::Timestamp::Timestamp(class google::protobuf::Timestamp const &)" (__imp_??0Timestamp@protobuf@google@@QEAA@AEBV012@@Z) referenced in function "public: __cdecl UseTimestamp::All_QtProtobufData::All_QtProtobufData(class UseTimestamp::All_QtProtobufData const &)" (??0All_QtProtobufData@UseTimestamp@@QEAA@AEBV01@@Z)
UseTimestamp.qpb.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class google::protobuf::Timestamp & __cdecl google::protobuf::Timestamp::operator=(class google::protobuf::Timestamp const &)" (__imp_??4Timestamp@protobuf@google@@QEAAAEAV012@AEBV012@@Z) referenced in function "public: void __cdecl UseTimestamp::All::setAGoodTime(class google::protobuf::Timestamp const &)" (?setAGoodTime@All@UseTimestamp@@QEAAXAEBVTimestamp@protobuf@google@@@Z)
UseTimestamp.qpb.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: bool __cdecl google::protobuf::Timestamp::operator==(class google::protobuf::Timestamp const &)const " (__imp_??8Timestamp@protobuf@google@@QEBA_NAEBV012@@Z) referenced in function "public: bool __cdecl UseTimestamp::All::operator==(class UseTimestamp::All const &)const " (??8All@UseTimestamp@@QEBA_NAEBV01@@Z)
UseTimestamp.qpb.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: bool __cdecl google::protobuf::Timestamp::operator!=(class google::protobuf::Timestamp const &)const " (__imp_??9Timestamp@protobuf@google@@QEBA_NAEBV012@@Z) referenced in function "public: void __cdecl UseTimestamp::All::setAGoodTime(class google::protobuf::Timestamp const &)" (?setAGoodTime@All@UseTimestamp@@QEAAXAEBVTimestamp@protobuf@google@@@Z)
UseTimestamp.qpb.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static struct QMetaObject const google::protobuf::Timestamp::staticMetaObject" (__imp_?staticMetaObject@Timestamp@protobuf@google@@2UQMetaObject@@B) referenced in function "public: static int __cdecl QMetaTypeIdQObject<class google::protobuf::Timestamp *,1024>::qt_metatype_id(void)" (?qt_metatype_id@?$QMetaTypeIdQObject@PEAVTimestamp@protobuf@google@@$0EAA@@@SAHXZ)
  Hint on symbols that are defined and could potentially match:
    "__declspec(dllimport) public: static struct QMetaObject const QProtobufMessage::staticMetaObject" (__imp_?staticMetaObject@QProtobufMessage@@2UQMetaObject@@B)
AOProtos.dll : fatal error LNK1120: 6 unresolved externals