gRPC C++ on Windows

20
votes

I have been trying for 3 days by now to find how to install and use gRPC on windows with no luck. I am using Visual Studio 2015, Win7 64-bit. To be safe, I'll write step by step of what I am doing. It might not be necessary but I am a beginner with C++ and with VS so I am not at all sure I am doing it correctly:

(following guide http://www.infopulse.com/blog/grpc-framework-by-google-tutorial/):

  • Get gRPC from git, init submodules
  • Get gmock and gtest for protobuf (not in the guide, but else it doesn't work)
  • Run cmake on protobuf
  • Build protobuf.sln in Visual Studio in Release mode (set for each part of the solution Property Manager > C/C++ > Code Generation > Runtime Library > /MDd)
  • Copy Release/ folder to protobuf/cmake/ (instead of Debug/ as in intructions - that would give me libprotobufd.lib instead of libprotobuf.lib which is required)
  • Build grpc/vsprojects/grpc_protoc_plugins.sln in VS also in Release mode and again set for each part of the solution Property Manager > C/C++ > Code Generation > Runtime Library > /MDd
  • Copy protoc.exe from protobuf/cmake/Release to grpc/vsprojects/Release, which was created in previous step
  • Build grpc/vsprojects/grpc.sln in VS in Debug mode (only the grpc++ part as I read somewhere and again set for each part of the solution Property Manager > C/C++ > Code Generation > Runtime Library > /MDd)

So far things are going well.

  • Generate c files from proto in example folder. I get helloworld.grpc.pb.cc, helloworld.grpc.pb.h, helloworld.pb.cc and helloworld.pb.h and move them all to grpc/examples/cpp/helloworld:

    protoc --grpc_out=./hello_proto --plugin=protoc-gen-grpc=grpc_cpp_plugin.exe ../../examples/protos/helloworld.proto --proto_path=../../examples/protos

    protoc --cpp_out=./hello_proto ../../examples/protos/helloworld.proto --proto_path=../../examples/protos

  • I keep the grpc.sln open in VS and 'Add' > 'New Project'

  • To the new project 'Add' > 'Existing Item' and add greeter_client.cc from grpc/examples/cpp
  • Add dependencies as: https://github.com/grpc/grpc/issues/4707 , with Includes going in C/C++ > Additional Include Directories

When I try to build my project errors are reported with not finding gflags, gtest, and libprotobuf. If I find it all and move them to an included folder, then I get these errors:

    1>------ Build started: Project: greeter_client, Configuration: Debug Win32 ------
1>  greeter_client.cc
1>libprotobuf.lib(generated_message_util.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libprotobuf.lib(generated_message_util.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libprotobuf.lib(common.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libprotobuf.lib(common.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libprotobuf.lib(once.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libprotobuf.lib(once.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libprotobuf.lib(status.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libprotobuf.lib(status.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libprotobuf.lib(int128.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libprotobuf.lib(int128.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libprotobuf.lib(atomicops_internals_x86_msvc.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libprotobuf.lib(atomicops_internals_x86_msvc.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(client_context.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(insecure_credentials.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(create_channel.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(credentials.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(create_channel_internal.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(channel_arguments.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(core_codegen.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(codegen_init.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>grpc++.lib(status.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: bool __thiscall std::ios_base::good(void)const " (?good@ios_base@std@@QBE_NXZ) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __thiscall std::ios_base::flags(void)const " (?flags@ios_base@std@@QBEHXZ) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __int64 __thiscall std::ios_base::width(void)const " (?width@ios_base@std@@QBE_JXZ) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __int64 __thiscall std::ios_base::width(__int64)" (?width@ios_base@std@@QAE_J_J@Z) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: int __thiscall std::basic_streambuf<char,struct std::char_traits<char> >::sputc(char)" (?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHD@Z) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: __int64 __thiscall std::basic_streambuf<char,struct std::char_traits<char> >::sputn(char const *,__int64)" (?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAE_JPBD_J@Z) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: void __thiscall std::basic_ios<char,struct std::char_traits<char> >::setstate(int,bool)" (?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QAEXH_N@Z) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > * __thiscall std::basic_ios<char,struct std::char_traits<char> >::tie(void)const " (?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEPAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_streambuf<char,struct std::char_traits<char> > * __thiscall std::basic_ios<char,struct std::char_traits<char> >::rdbuf(void)const " (?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEPAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: char __thiscall std::basic_ios<char,struct std::char_traits<char> >::fill(void)const " (?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEDXZ) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: char __thiscall std::basic_ios<char,struct std::char_traits<char> >::widen(char)const " (?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEDD@Z) already defined in grpc++.lib(channel_arguments.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: void __thiscall std::basic_ostream<char,struct std::char_traits<char> >::_Osfx(void)" (?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEXXZ) already defined in libprotobuf.lib(status.obj)
1>msvcprtd.lib(MSVCP140D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __thiscall std::basic_ostream<char,struct std::char_traits<char> >::flush(void)" (?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@XZ) already defined in libprotobuf.lib(status.obj)
1>libcpmt.lib(ios.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(ios.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(ios.obj) : error LNK2005: "public: static void __cdecl std::ios_base::_Addstd(class std::ios_base *)" (?_Addstd@ios_base@std@@SAXPAV12@@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(ios.obj) : error LNK2005: "private: static void __cdecl std::ios_base::_Ios_base_dtor(class std::ios_base *)" (?_Ios_base_dtor@ios_base@std@@CAXPAV12@@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(locale0.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(locale0.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(locale0.obj) : error LNK2005: "void __cdecl std::_Facet_Register(class std::_Facet_base *)" (?_Facet_Register@std@@YAXPAV_Facet_base@1@@Z) already defined in msvcprtd.lib(locale0_implib.obj)
1>libcpmt.lib(locale0.obj) : error LNK2005: "private: static class std::locale::_Locimp * __cdecl std::locale::_Getgloballocale(void)" (?_Getgloballocale@locale@std@@CAPAV_Locimp@12@XZ) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(locale0.obj) : error LNK2005: "private: static class std::locale::_Locimp * __cdecl std::locale::_Init(bool)" (?_Init@locale@std@@CAPAV_Locimp@12@_N@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(locale0.obj) : error LNK2005: "public: static void __cdecl std::_Locinfo::_Locinfo_ctor(class std::_Locinfo *,char const *)" (?_Locinfo_ctor@_Locinfo@std@@SAXPAV12@PBD@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(locale0.obj) : error LNK2005: "public: static void __cdecl std::_Locinfo::_Locinfo_dtor(class std::_Locinfo *)" (?_Locinfo_dtor@_Locinfo@std@@SAXPAV12@@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(iosptrs.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(iosptrs.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(locale.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(locale.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(xlock.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(xlock.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(xlock.obj) : error LNK2005: "public: __thiscall std::_Lockit::_Lockit(int)" (??0_Lockit@std@@QAE@H@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(xlock.obj) : error LNK2005: "public: __thiscall std::_Lockit::~_Lockit(void)" (??1_Lockit@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(xthrow.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(xthrow.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(xthrow.obj) : error LNK2005: "void __cdecl std::_Xbad_alloc(void)" (?_Xbad_alloc@std@@YAXXZ) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(xthrow.obj) : error LNK2005: "void __cdecl std::_Xlength_error(char const *)" (?_Xlength_error@std@@YAXPBD@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(xthrow.obj) : error LNK2005: "void __cdecl std::_Xout_of_range(char const *)" (?_Xout_of_range@std@@YAXPBD@Z) already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(wlocale.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(wlocale.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(xlocale.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(xlocale.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(xdateord.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(xdateord.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(xwctomb.obj) : error LNK2005: __Getcvt already defined in msvcprtd.lib(MSVCP140D.dll)
1>libcpmt.lib(winapisupp.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(winapisupp.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(StlCompareStringA.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(StlCompareStringA.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(winapinls.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(winapinls.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(StlCompareStringW.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(StlCompareStringW.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(StlLCMapStringW.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(StlLCMapStringW.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>libcpmt.lib(StlLCMapStringA.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in greeter_client.obj
1>libcpmt.lib(StlLCMapStringA.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MDd_DynamicDebug' in greeter_client.obj
1>LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library
1>LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _deflate imported in function _BIO_f_zlib
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _deflateEnd imported in function _BIO_f_zlib
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _inflate imported in function _BIO_f_zlib
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _inflateEnd imported in function _BIO_f_zlib
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _deflateInit_ imported in function _BIO_f_zlib
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _inflateInit_ imported in function _BIO_f_zlib
1>libeay32.lib(c_zlib.obj) : warning LNK4217: locally defined symbol _zError imported in function _zlib_zfree
1>greeter_client.obj : error LNK2019: unresolved external symbol "public: __thiscall helloworld::HelloRequest::HelloRequest(void)" (??0HelloRequest@helloworld@@QAE@XZ) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall GreeterClient::SayHello(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?SayHello@GreeterClient@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV23@@Z)
1>greeter_client.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall helloworld::HelloRequest::~HelloRequest(void)" (??1HelloRequest@helloworld@@UAE@XZ) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall GreeterClient::SayHello(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?SayHello@GreeterClient@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV23@@Z)
1>greeter_client.obj : error LNK2019: unresolved external symbol "public: __thiscall helloworld::HelloReply::HelloReply(void)" (??0HelloReply@helloworld@@QAE@XZ) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall GreeterClient::SayHello(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?SayHello@GreeterClient@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV23@@Z)
1>greeter_client.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall helloworld::HelloReply::~HelloReply(void)" (??1HelloReply@helloworld@@UAE@XZ) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall GreeterClient::SayHello(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?SayHello@GreeterClient@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV23@@Z)
1>greeter_client.obj : error LNK2019: unresolved external symbol "public: virtual class grpc::Status __thiscall helloworld::Greeter::Stub::SayHello(class grpc::ClientContext *,class helloworld::HelloRequest const &,class helloworld::HelloReply *)" (?SayHello@Stub@Greeter@helloworld@@UAE?AVStatus@grpc@@PAVClientContext@5@ABVHelloRequest@3@PAVHelloReply@3@@Z) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall GreeterClient::SayHello(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?SayHello@GreeterClient@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV23@@Z)
1>greeter_client.obj : error LNK2019: unresolved external symbol "public: static class std::unique_ptr<class helloworld::Greeter::Stub,struct std::default_delete<class helloworld::Greeter::Stub> > __cdecl helloworld::Greeter::NewStub(class std::shared_ptr<class grpc::ChannelInterface> const &,class grpc::StubOptions const &)" (?NewStub@Greeter@helloworld@@SA?AV?$unique_ptr@VStub@Greeter@helloworld@@U?$default_delete@VStub@Greeter@helloworld@@@std@@@std@@ABV?$shared_ptr@VChannelInterface@grpc@@@4@ABVStubOptions@grpc@@@Z) referenced in function "public: __thiscall GreeterClient::GreeterClient(class std::shared_ptr<class grpc::Channel>)" (??0GreeterClient@@QAE@V?$shared_ptr@VChannel@grpc@@@std@@@Z)
1>grpc++.lib(create_channel_internal.obj) : error LNK2019: unresolved external symbol "public: virtual __thiscall grpc::Channel::~Channel(void)" (??1Channel@grpc@@UAE@XZ) referenced in function "public: virtual void * __thiscall grpc::Channel::`scalar deleting destructor'(unsigned int)" (??_GChannel@grpc@@UAEPAXI@Z)
1>grpc++.lib(create_channel_internal.obj) : error LNK2019: unresolved external symbol "private: __thiscall grpc::Channel::Channel(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,struct grpc_channel *)" (??0Channel@grpc@@AAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@PAUgrpc_channel@@@Z) referenced in function "class std::shared_ptr<class grpc::Channel> __cdecl grpc::CreateChannelInternal(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,struct grpc_channel *)" (?CreateChannelInternal@grpc@@YA?AV?$shared_ptr@VChannel@grpc@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@3@PAUgrpc_channel@@@Z)
1>C:\Tool\C++gRPC\grpc\vsprojects\\Debug\gflagsd.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'X86'
1>C:\Tool\C++gRPC\grpc\vsprojects\Debug\greeter_client.exe : fatal error LNK1120: 8 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

If anyone could offer a solution, I will be grateful.

5
c++windowsvisual-studio-2015grpc
error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' I believe this means you are using a release library in a debug application. – drescherjm
LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library This also identifies the release CRT and debug CRT mismatch. Make sure every library / dll is built with the same configuration. – drescherjm
Build grpc/vsprojects/grpc.sln in VS in Debug mode Since you did the above steps in Release mode you can't do this step in Debug mode. – drescherjm
The errors dissapeared, though there is new - /ZI and /GL not compatible. That is probably an error that is solvable. Unlike the mixing of Debug and Release which will not work (may compile but will likely cause a crash during runtime because of the incompatible CRT). – drescherjm
It might not be necessary but I am a beginner with C Two things: 1. more information is generally good, so kudos. We like to see what steps you've taken :) 2. C isn't C++; make sure you have the nomenclature correct! – Qix - MONICA WAS MISTREATED

5 Answers

22
votes

After struggling with this for some time myself, I found that vcpkg does a very good job building gRPC C++ for Windows. Note the requirements are Window 7 or later and VS2015 Update 3 or later. Note that you can configure it the way you want it by using a triplet, e.g. .\vcpkg.exe install grpc --triplet x86-windows-static

22
votes

After struggling with various errors for many days, I found ready-to-install version here https://github.com/plasticbox/grpc-windows which seems to work satisfactory for my purpose. I post it here in case anyone is in similar situation.

Update: June 2020

According to the project page on GitHub the project is no longer maintained and therefore the example might not work any longer:

May 2019 NOTE: Project is no longer under active development, I definitely recommend using vcpkg

2
votes

Here is the solution I used to install and use grpc on windows...

GRPC C++...
install...
Microsoft Visual Studio Community 2017 Version 15.6.4
Git
CMake
Chocolatey
Open git as admin
Active State Perl
choco install activeperl
Go
choco install golang
yasm
choco install yasm
add C:\ProgramData\chocolatey\lib\yasm\tools to PATH
Ninja
choco install ninja
clone grpc sources including submodules...
git clone --recursive -b v1.10.x https://github.com/grpc/grpc
cd grpc
cmake: Using Ninja (supports boringssl's assembly optimizations)...
close git
open Administrator: Command Prompt (shift+RC cmd and run as admin)
cd C:\Users\aaron\repo\grpc
md .build && cd .build
call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x64
cmake .. -GNinja -DCMAKE_BUILD_TYPE=Release
cmake --build .
ninja install

generating code...
open visual studio and create new project
turn off precompiled headers
RC project -> Properties -> C/C++ -> Precompiled Headers
Set Precompiled Header = "Not Using Precompiled Headers"
Delete stdafx.h/.cpp
add .proto file
RC Resource Files -> Add new -> Utility -> Text.txt
name file with .proto extension
write .proto file contents
copy .proto to "C:\Program Files (x86)\grpc\bin"
navigate to "C:\Users\aaron\repo\grpc\.build"
copy grpc_cpp_plugin.exe to "C:\Program Files (x86)\grpc\bin"
open Administrator: Command Prompt
cd C:\Program Files (x86)\grpc\bin
protoc -I . --grpc_out=. --plugin=protoc-gen-grpc=grpc_cpp_plugin.exe cid_service.proto
Generates cid_service.grpc.pb.cc/.h
protoc -I . --cpp_out=. cid_service.proto
Generates cid_service.pb.cc/.h
copy files to VS project and add them to Header Files/Source Files

1
votes

This helped a lot thank you for making this. I used this by extracting the zip, cd in the folder and with 

git clone -b v1.2.0 https://github.com/grpc/grpc

git submodule update --init

Install pthreads to visual studios VC\include(.h), lib(.lib) and bin(.dll)

run nuget restore (foreach .sln file to get dependencies)

nuget restore grpc\vsprojects\grpc.sln

nuget restore grpc\vsprojects\grpc_protoc_plugins.sln

nuget restore grpc\third_party\protobuf\cmake\build\solution\protobuf.sln

Fix grpc\src\cpp\server\ server_builder.cc

int num_frequently_polled_cqs = sync_server_cqs->size();

Change int to size_t in line 273, int num...(as above)

Run grpc_build.bat, next goto grpc_helloworld folder and run test_protoc.bat, open grpc_helloworld.sln, running build should execute nuget automatically.

1
votes

In order to install gRPC using vcpkg, launch a console in Windows and execute the following command,

  1. vcpkg install grpc:x64-windows
  2. vcpkg install protobuf protobuf:x64-windows
  3. vcpkg install protobuf[zlib] protobuf[zlib]:x64-windows
  4. vcpkg integrate install

Now we have everything we need, so let's try to generate the message and service interfaces from a proto file using the protoc compiler

If protoc is not available from your console, you might have to add it to your system env PATH. And it will be present in your <vcpkg_install_path>\packages\protobuf_x64-windows\tools\protobuf folder

Now copy the file to our project/proto folder and run the following commands from there

  1. protoc -I=. --cpp_out=. <yourprotofile>.proto

  2. protoc -I=. --grpc_out=. --plugin=protoc-gen-grpc="<vcpkg_install_path>\packages\grpc_x64-windows\tools\grpc\grpc_cpp_plugin.exe" <your_protofile>.proto

Now let's add content to our CMakeLists.txt file. Take the following code and copy it to our CMakeLists.txt file.

//  start  //

cmake_minimum_required( VERSION 3.1 )

project( grpc_example )

find_package(gRPC CONFIG REQUIRED)

find_package( Protobuf REQUIRED )


include_directories(<vcpkg_install_path>/buildtrees/protobuf/src/23fa7edd52-3ba2225d30.clean/src)

add_executable( server src/server.cpp proto/helloworld.grpc.pb.cc proto/helloworld.pb.cc)

add_executable( client src/client.cpp proto/helloworld.grpc.pb.cc proto/helloworld.pb.cc)

target_link_libraries( server PRIVATE gRPC::grpc++ gRPC::grpc++_reflection gRPC::gpr gRPC::grpc gRPC::grpc++ gRPC::grpc_cronet protobuf::libprotoc protobuf::libprotobuf protobuf::libprotobuf-lite )

target_link_libraries( client PRIVATE gRPC::grpc++ gRPC::grpc++_reflection gRPC::gpr gRPC::grpc gRPC::grpc++ gRPC::grpc_cronet protobuf::libprotoc protobuf::libprotobuf protobuf::libprotobuf-lite )

// end //

Now go to our project/build folder and issue the following command to generate a project using CMake. I'll be generating a Visual Studio 2015 solution here, but the choice is up to you.

  1. cmake -G "Visual Studio 14 2015 Win64" ../ -DCMAKE_TOOLCHAIN_FILE=<vcpkg_install_path>/scripts/buildsystems/vcpkg.cmake
  2. cmake build .
  3. cmake --build . --config Release

Now go to the Release folder, and run the server.exe and client.exe