Windows上的gRPC C++

Question

Windows上的gRPC C++

jir*_*ipi 12 c++ windows visual-studio-2015 grpc

我已经尝试了3天,现在找到如何在没有运气的情况下在Windows上安装和使用gRPC.我使用的是Visual Studio 2015,Win7 64位.为了安全起见,我会一步一步地写下我正在做的事情.它可能没有必要,但我是C++和VS的初学者,所以我不确定我是否正确地做到了:

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

从git,init子模块获取gRPC
为protobuf获取gmock和gtest(不在指南中,但是它不起作用)
在protobuf上运行cmake
在发布模式下在Visual Studio中构建protobuf.sln(为解决方案的每个部分设置Property Manager> C/C++>代码生成>运行时库> / 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
我保持在VS中打开grpc.sln并'添加'>'新建项目'
到新项目'添加'>'现有项'并从grpc/examples/cpp 添加greeter_client.cc
将依赖项添加为:https://github.com/grpc/grpc/issues/4707,包括进入C/C++>其他包含目录

当我尝试构建我的项目时,报告的错误是找不到gflags,gtest和libprotobuf.如果我找到所有并将它们移动到包含的文件夹,那么我会收到以下错误:

    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 ==========

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如果有人能提供解决方案,我将不胜感激.

Answer 1

jir*_*ipi 19

在经历了多天的各种错误之后,我在https://github.com/plasticbox/grpc-windows找到了可立即安装的版本,这似乎对我的目的来说是令人满意的.我在这里张贴以防万一有人处于类似情况.

请注意，提到的脚本会构建相当老的gRPC的“ v1.3.x”，并且gRPC团队更改了构建方式，因此请务必小心！！！ (2认同)

Answer 2

Dal*_*ker 12

经过一段时间的努力,我发现vcpkg在为Windows构建grpc c ++方面做得非常好.https://github.com/Microsoft/vcpkg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希望的方式对其进行配置,例如.\ vcpkg.exe install grpc --triplet x86-windows-static

Answer 3

小智 10

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

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

如果您的控制台无法使用 protoc，您可能必须将其添加到系统环境路径中。它将出现在您的<vcpkg_install_path>\packages\protobuf_x64-windows\tools\protobuf文件夹中

现在将文件复制到我们的project/proto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 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 //

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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。我将在这里生成 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

现在转到Release文件夹，然后运行server.exe和client.exe

你好，请问cmake部分有必要吗？我认为“vcpkg”为我提供了可以在 Visual Studio 中使用的一切？我试图跳过 cmake 部分，现在遇到链接器错误：/sf/ask/4813816381/?noredirect=1&lq=1 (2认同)
回答我之前的评论：不，这没有必要。人们可以省略答案中的 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，需要通过这种方式修复：/sf/ask/4813816381/已启用/68772745#68772745 (2认同)

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