“private: static int google::protobuf::io::CodedInputStream::default_recursion_limit_“

1>io.obj : error LNK2019: unresolved external symbol "private: static int google::protobuf::io::CodedInputStream::default_recursion_limit_" (?default_recursion_limit_@CodedInputStream@io@protobuf@google@@0HA) referenced in function "bool __cdecl ca::ReadProtoFromBinaryFile(char const *,class google::protobuf::Message *)" (?ReadProtoFromBinaryFile@ca@@YA_NPEBDPEAVMessage@protobuf@google@@@Z)
1>caproto.lib(ca.pb.obj) : error LNK2001: unresolved external symbol "class google::protobuf::internal::ExplicitlyConstructed,class std::allocator >,8> google::protobuf::internal::fixed_address_empty_string" (?fixed_address_empty_string@internal@protobuf@google@@3V?$ExplicitlyConstructed@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@$07@123@A)
1>gflags_static.lib(gflags.obj) : error LNK2019: unresolved external symbol __imp_PathMatchSpecA referenced in function "public: class std::basic_string,class std::allocator > __cdecl google::`anonymous namespace'::CommandLineFlagParser::ProcessOptionsFromStringLocked(class std::basic_string,class std::allocator > const &,enum google::FlagSettingMode)" (?ProcessOptionsFromStringLocked@CommandLineFlagParser@?A0x553bee5c@google@@QEAA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AEBV45@W4FlagSettingMode@3@@Z)