Windows 上的 gRPC C++答案

【问题标题】：gRPC C++ on WindowsWindows 上的 gRPC C++
【发布时间】：2023-03-04 03:25:02
【问题描述】：

到目前为止，我已经尝试了 3 天来寻找如何在 Windows 上安装和使用 gRPC，但没有成功。我正在使用 Visual Studio 2015，Win7 64 位。为了安全起见，我会一步一步地写我正在做的事情。这可能没有必要，但我是 C++ 和 VS 的初学者，所以我完全不确定我是否正确：

（跟随指南http://www.infopulse.com/blog/grpc-framework-by-google-tutorial/）：

从 git 获取 gRPC，初始化子模块
为 protobuf 获取 gmock 和 gtest（不在指南中，但在其他不起作用）
在 protobuf 上运行 cmake
在 Visual Studio 中以发布模式构建 protobuf.sln（为解决方案的每个部分设置属性管理器 > C/C++ > 代码生成 > 运行时库 > /MDd )
将 Release/ 文件夹复制到 protobuf/cmake/（而不是指令中的 Debug/ - 这会给我 libprotobufd.lib 而不是 libprotobuf.lib 这是必需的)
在 VS 中也以发布模式构建 grpc/vsprojects/grpc_protoc_plugins.sln，并为解决方案的每个部分再次设置属性管理器 > C/C++ > 代码生成 > 运行时库 > /医学博士
将protoc.exe从protobuf/cmake/Release复制到上一步创建的grpc/vsprojects/Release
在调试模式下在 VS 中构建 grpc/vsprojects/grpc.sln（只有 grpc++ 部分，因为我在某处阅读并再次为解决方案的每个部分设置属性管理器 > C/C++ > 代码生成> 运行时库 > /MDd)

目前一切进展顺利。

从示例文件夹中的 proto 生成 c 文件。我得到 helloworld.grpc.pb.cc、helloworld.grpc.pb.h、helloworld.pb.cc 和 helloworld。 pb.h 并将它们全部移动到 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
我保持 grpc.sln 在 VS 中打开并“添加”>“新项目”
到新项目 'Add' > 'Existing Item' 并从 grpc/examples/cpp 添加 greeter_client.cc
将依赖项添加为：https://github.com/grpc/grpc/issues/4707，包含在 C/C++ 中 > 附加包含目录

当我尝试构建我的项目时，报告了找不到 gflags、gtest 和 libprotobuf 的错误。如果我找到所有内容并将它们移动到包含的文件夹中，则会收到以下错误：

    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 ==========

如果有人能提供解决方案，我将不胜感激。

【问题讨论】：

error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' 我相信这意味着你是在调试应用程序中使用发布库。
LINK：警告 LNK4098：defaultlib 'LIBCMT' 与使用其他库发生冲突；使用 /NODEFAULTLIB:library 这也标识了发布 CRT 和调试 CRT 不匹配。确保每个库/dll 都使用相同的配置构建。
在 VS 中以调试模式构建 grpc/vsprojects/grpc.sln 由于您在发布模式下执行了上述步骤，因此无法执行此操作进入调试模式。
错误消失了，尽管有新的 - /ZI 和 /GL 不兼容。 这可能是一个可以解决的错误。与混合使用 Debug 和 Release 不同，后者不起作用（可能会编译，但由于 CRT 不兼容，可能会在运行时导致崩溃）。
It might not be necessary but I am a beginner with C 两件事： 1. 更多的信息通常是好的，所以荣誉。我们想看看您采取了哪些步骤:) 2. C 不是 C++；确保你有正确的命名法！

标签： c++ windows visual-studio-2015 grpc

【解决方案1】：

要使用 vcpkg 安装 gRPC，请在 Windows 中启动控制台并执行以下命令，

vcpkg install grpc:x64-windows
vcpkg install protobuf protobuf:x64-windows
vcpkg install protobuf[zlib] protobuf[zlib]:x64-windows
vcpkg integrate install

现在我们有了所需的一切，让我们尝试使用 protoc 编译器从 proto 文件生成消息和服务接口

如果 protoc 在您的控制台中不可用，您可能必须将其添加到您的系统 env PATH。它会出现在您的<vcpkg_install_path>\packages\protobuf_x64-windows\tools\protobuf 文件夹中

现在将文件复制到我们的项目/原型文件夹并从那里运行以下命令

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

现在让我们将内容添加到我们的 CMakeLists.txt 文件中。将以下代码复制到我们的 CMakeLists.txt 文件中。

//  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 //

现在转到我们的项目/构建文件夹并发出以下命令以使用 CMake 生成项目。我将在此处生成 Visual Studio 2015 解决方案，但选择权取决于您。

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

现在进入Release文件夹，运行server.exe和client.exe

【讨论】：

您好，cmake 部分是否必要？我认为vcpkg 为我提供了可以在 Visual Studio 中使用的所有内容？我试图跳过 cmake 部分，但现在我遇到了链接器错误：stackoverflow.com/questions/68768805/…
回答我之前的评论：不，这没有必要。可以省略答案的 cmake 部分并在 VisualStudio 中使用基于 MSBuild 的项目（= 常规控制台 cpp 项目）。但是，基于 MSBuild 的项目存在链接器错误，需要以这种方式修复：stackoverflow.com/questions/68768805/…

【解决方案2】：

在与各种错误斗争了很多天之后，我在这里找到了准备安装的版本https://github.com/plasticbox/grpc-windows，这似乎对我的目的来说令人满意。我把它贴在这里以防万一有人遇到类似情况。

更新：2020 年 6 月

根据 GitHub 上的项目页面，该项目不再维护，因此该示例可能不再适用：

2019 年 5 月注意：项目不再处于积极开发中，我绝对推荐使用 vcpkg

【讨论】：

在与 GRPC/Protobuf 斗争了一天之后，我终于找到了这篇文章，它挽救了我的理智。太棒了！
我不需要挣扎，因为我找到了这些甜蜜的脚本（感谢这篇文章），我用它在 Windows 10 64 位中构建了 protobuf3 和 grpc。谢谢！
我做了几天同样的事情，然后我看到了这篇文章...在 github 上给他一个明星！
注意，上面提到的脚本，构建了相当老的gRPC“v1.3.x”，gRPC团队改变了构建方式，所以要小心！！！
如果您想要构建较新 grpc 的版本或使用较新版本的 Visual Studio 构建的版本，请查看上述 github 项目的一些分支。

【解决方案3】：

在自己为此苦苦挣扎了一段时间后，我发现vcpkg 在为 Windows 构建 gRPC C++ 方面做得非常好。请注意，要求是 Window 7 或更高版本以及 VS2015 Update 3 或更高版本。请注意，您可以使用三元组以您想要的方式配置它，例如.\vcpkg.exe 安装 grpc --triplet x86-windows-static

【讨论】：

【解决方案4】：

这是我用来在windows上安装和使用grpc的解决方案...

GRPC C++...
安装...
Microsoft Visual Studio Community 2017 版本 15.6.4
吉特
制作
巧克力味
以管理员身份打开 git
活动状态 Perl
choco 安装 activeperl
去
choco 安装 golang
亚斯姆
choco 安装 yasm
将 C:\ProgramData\chocolatey\lib\yasm\tools 添加到 PATH
忍者
巧克力安装忍者
克隆 grpc 源，包括子模块...
git clone --recursive -b v1.10.x https://github.com/grpc/grpc
cd grpc
cmake：使用 Ninja（支持boringssl 的汇编优化）...
关闭 git
打开管理员：命令提示符（shift+RC cmd 并以管理员身份运行）
cd C:\Users\aaron\repo\grpc
md .build && cd .build
调用“C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat”x64
cmake .. -GNinja -DCMAKE_BUILD_TYPE=发布
cmake --build .
忍者安装

生成代码...
打开视觉工作室并创建新项目
关闭预编译头文件
RC 项目 -> 属性 -> C/C++ -> 预编译头文件
设置预编译头文件 = "不使用预编译头文件"
删除 stdafx.h/.cpp
添加 .proto 文件
RC 资源文件 -> 添加新的 -> 实用程序 -> Text.txt
带有 .proto 扩展名的文件名
写入 .proto 文件内容
将 .proto 复制到“C:\Program Files (x86)\grpc\bin”
导航到“C:\Users\aaron\repo\grpc\.build”
将 grpc_cpp_plugin.exe 复制到“C:\Program Files (x86)\grpc\bin”
打开管理员：命令提示符
cd C:\Program Files (x86)\grpc\bin
协议 -I 。 --grpc_out=。 --plugin=protoc-gen-grpc=grpc_cpp_plugin.exe cid_service.proto
生成 cid_service.grpc.pb.cc/.h
协议 -I 。 --cpp_out=。 cid_service.proto
生成 cid_service.pb.cc/.h
将文件复制到 VS 项目并将它们添加到 Header Files/Source Files

【讨论】：

【解决方案5】：

这对您帮助很大，感谢您制作这个。我通过提取文件夹中的 zip、cd 和

来使用它

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

git submodule update --init

将 pthread 安装到 Visual Studio VC\include(.h)、lib(.lib) 和 bin(.dll)

运行 nuget restore（foreach .sln 文件以获取依赖项）

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

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

int num_frequently_polled_cqs = sync_server_cqs->size();

在第 273 行将 int 更改为 size_t，int num...（如上）

运行 grpc_build.bat，然后转到 grpc_helloworld 文件夹并运行 test_protoc.bat，打开grpc_helloworld.sln，运行build应该会自动执行nuget。

【讨论】：