syntax = "proto3";
package test;
message Person {
  optional string name = 1;
  optional int32 id = 2;
  optional string email = 3;
run .\protoc.exe --cpp_out=./ .\test.proto
test.pb.h

test.pb.cc
Create Simple Hello_World ConsoleApplication using using Visual Studio 2019 Release x64
add src test.pb.h and test.pb.cc

add link lirary libprotobuf.lib and libprotoc.lib

add include dir google

copy DLL libprotobuf.dll and libprotoc.dll

#include "test.pb.h"
Build
What did you expect to see

build suceess

What did you see instead?
Error LNK2001	unresolved external symbol "class google::protobuf::internal::ExplicitlyConstructed<class std::basic_string<char,struct std::char_traits,class std::allocator > > 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@@@123@A)
And once I opened "test.pb.h" in vs editor, hundreds of errors occured

e.g some macro marked error

PROTOBUF_NAMESPACE_OPEN

Error (active)	E0077	this declaration has no storage class or type specifier
::PROTOBUF_NAMESPACE_ID::

Error (active)	E0276	name followed by '::' must be a class or namespace name
Furthermore, if import "google/protobuf/any.proto";
Error LNK2001	unresolved external symbol "struct google::protobuf::AnyDefaultTypeInternal google::protobuf::Any_default_instance" (?Any_default_instance@protobuf@google@@3UAnyDefaultTypeInternal@12@A)
How Can I correctly build? Thanks a lot!!!
Failed to Build .pb.h and .pb.cc in Windows C++ Project
Failed to Build Visual Stuido C++ Project  with .pb.h and .pb.cc 
    Mar 25, 2022
          
changing the "C++ Language Standard" to "ISO C++ 17 Standard (/std:c++17)" resolved the header issues "Error (active) E0077".

Other issues can be resolved using the solution mentioned above by @sigaaron.
          
same problem,but my OS is Ubuntu 18.04

And once I opened "test.pb.h" in vs code, hundreds of errors occured

e.g some macro marked error

PROTOBUF_NAMESPACE_OPEN

Error (active) E0077 this declaration has no storage class or type specifier
::PROTOBUF_NAMESPACE_ID::

Error (active) E0276 name followed by '::' must be a class or namespace name

How Can I correctly build? Thanks a lot!!!!!!!!!!!!!!!!!!
I have same issue in vs2019 when i build grpc examples.
I try to enable grpc_MSVC_STATIC_RUNTIME ,protobuf_MSVC_STATIC_RUNTIME,Cares_MSVC_STATIC_RUNTIME in cmake configuration，then I try to generate a static lib by”.grpc.pb.cc“、”.grpc.pb.h“、”.pb.cc“、”.pb.h“rather than dynamic library.
although it still have errors such as E0077,but it build success 。
According to the header file "<google/protobuf/port_def.inc>",The definitions in this file are intended to be portable across Clang,GCC, and MSVC. Function-like macros are usable without an #ifdef guard. Syntax macros (for example, attributes) are always defined, although they may be empty.
maybe just the IntelliSense error?
changing the "C++ Language Standard" to "ISO C++ 17 Standard (/std:c++17)" resolved the header issues "Error (active) E0077". Other issues can be resolved using the solution mentioned above by @sigaaron.
changing standard to c++17  successfully clears errors

          
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