我尝试在Ubuntu 16.04.02虚拟机中为cpp编译grpc。由于grpc提供的protobuf版本没有编译（解压缩说其中一个zip文件已损坏）我从源代码编译了protobuf 3.2.0（这应该是我理解的正确版本），工作正常。< / p>
当我现在运行make来编译grpc时，我得到一个冗长的错误，这与一些文件是用较旧的protoc版本生成的事实有关。 （我在底部添加完整的错误消息）。 所以我的问题是：3.2是错误的protobuf版本还是一个不同的问题？我还尝试根据Need help to install c++ grpc on ubuntu 16.04从grpc的第三方目录中删除protobuf目录，但它并没有改变任何内容。
提前致谢！
错误讯息：
[CXX] Compiling src/cpp/ext/proto_server_reflection.cc
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h:51:2: error: #error This file was generated by an older version of protoc which is
#error This file was generated by an older version of protoc which is
^
include/grpc++/ext/reflection.pb.h:52:2: error: #error incompatible with your Protocol Buffer headers. Please
#error incompatible with your Protocol Buffer headers. Please
^
include/grpc++/ext/reflection.pb.h:53:2: error: #error regenerate this file with a newer version of protoc.
#error regenerate this file with a newer version of protoc.
^
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServerReflectionRequest::host() const’:
include/grpc++/ext/reflection.pb.h:994:87: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
host_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServerReflectionRequest::file_by_filename() const’:
include/grpc++/ext/reflection.pb.h:1048:118: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
name_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServerReflectionRequest::file_containing_symbol() const’:
include/grpc++/ext/reflection.pb.h:1129:124: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
mbol_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServerReflectionRequest::all_extension_numbers_of_type() const’:
include/grpc++/ext/reflection.pb.h:1258:131: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
type_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServerReflectionRequest::list_services() const’:
include/grpc++/ext/reflection.pb.h:1339:115: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
ices_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ExtensionRequest::containing_type() const’:
include/grpc++/ext/reflection.pb.h:1423:98: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
type_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServerReflectionResponse::valid_host() const’:
include/grpc++/ext/reflection.pb.h:1485:93: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
host_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ExtensionNumberResponse::base_type_name() const’:
include/grpc++/ext/reflection.pb.h:1831:97: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
name_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ServiceResponse::name() const’:
include/grpc++/ext/reflection.pb.h:1943:87: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
name_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
In file included from include/grpc++/ext/reflection.grpc.pb.h:73:0,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
include/grpc++/ext/reflection.pb.h: In member function ‘const string& grpc::reflection::v1alpha::ErrorResponse::error_message() const’:
include/grpc++/ext/reflection.pb.h:2005:96: error: no matching function for call to ‘google::protobuf::internal::ArenaStringPtr::GetNoArena(const string*) const’
sage_.GetNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
^
In file included from include/grpc++/ext/reflection.pb.h:57:0,
from include/grpc++/ext/reflection.grpc.pb.h:73,
from ./src/cpp/ext/proto_server_reflection.h:39,
from src/cpp/ext/proto_server_reflection.cc:39:
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate: const string& google::protobuf::internal::ArenaStringPtr::GetNoArena() const
inline const ::std::string& GetNoArena() const { return *ptr_; }
^
/usr/local/include/google/protobuf/arenastring.h:225:31: note: candidate expects 0 arguments, 1 provided
Makefile:2094: recipe for target '/home/snoato/Downloads/grpc/objs/opt/src/cpp/ext/proto_server_reflection.o' failed
make: *** [/home/snoato/Downloads/grpc/objs/opt/src/cpp/ext/proto_server_reflection.o] Error 1
答案 0 :(得分：0)
这是在添加反思支持时的疏忽。使用更新版本的gRPC时，这个问题不再存在，因为我们现在正在构建时生成这些文件。
我怀疑你是在尝试构建一个有问题的旧版本。请尝试更新： - ）