Hi,
I installed grpc 1.3.0 and protobuf 3.2.0 in OSX El Captain 10.11.6.
I had some problems installing which gave errors saying "ld: warning:
directory not found for option '-L/<path>/grpc/libs/opt/c-ares'"
Then i installed c-ares from homebrew "brew install c-ares".
Installed grpc successfully after that.
Then I tried running "make" in the helloworld (cpp examples directory), but
got the below errors:
protoc -I ../../protos --cpp_out=. ../../protos/helloworld.proto
g++ -std=c++11 -I/usr/local/include -pthread -c -o helloworld.pb.o
helloworld.pb.cc
protoc -I ../../protos --grpc_out=. --plugin=protoc-gen-grpc=`which
grpc_cpp_plugin` ../../protos/helloworld.proto
g++ -std=c++11 -I/usr/local/include -pthread -c -o helloworld.grpc.pb.o
helloworld.grpc.pb.cc
g++ -std=c++11 -I/usr/local/include -pthread -c -o greeter_client.o
greeter_client.cc
g++ helloworld.pb.o helloworld.grpc.pb.o greeter_client.o -L/usr/local/lib
`pkg-config --libs grpc++ grpc` -lgrpc++_reflection -lprotobuf -lpthread -ldl
-o greeter_clientUndefined symbols for architecture x86_64:
"grpc::CreateChannel(std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&, std::shared_ptr<grpc::ChannelCredentials>
const&)", referenced from:
_main in greeter_client.o
"google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*,
void (*)(std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&))", referenced from:
helloworld::protobuf_helloworld_2eproto::AddDescriptorsImpl() in
helloworld.pb.o
"google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, unsigned char*)",
referenced from:
google::protobuf::internal::WireFormatLite::WriteStringToArray(int,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, unsigned char*) in helloworld.pb.o
"google::protobuf::internal::ArenaStringPtr::AssignWithDefault(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const*,
google::protobuf::internal::ArenaStringPtr)", referenced from:
helloworld::HelloRequest::HelloRequest(helloworld::HelloRequest const&)
in helloworld.pb.o
helloworld::HelloRequest::HelloRequest(helloworld::HelloRequest const&)
in helloworld.pb.o
helloworld::HelloRequest::MergeFrom(helloworld::HelloRequest const&) in
helloworld.pb.o
helloworld::HelloReply::HelloReply(helloworld::HelloReply const&) in
helloworld.pb.o
helloworld::HelloReply::HelloReply(helloworld::HelloReply const&) in
helloworld.pb.o
helloworld::HelloReply::MergeFrom(helloworld::HelloReply const&) in
helloworld.pb.o
"google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, google::protobuf::io::CodedOutputStream*)", referenced from:
helloworld::HelloRequest::SerializeWithCachedSizes(google::protobuf::io::CodedOutputStream*)
const in helloworld.pb.o
helloworld::HelloReply::SerializeWithCachedSizes(google::protobuf::io::CodedOutputStream*)
const in helloworld.pb.o
"google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>*)", referenced from:
google::protobuf::internal::WireFormatLite::ReadString(google::protobuf::io::CodedInputStream*,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>*) in helloworld.pb.o
"google::protobuf::internal::AssignDescriptors(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
google::protobuf::internal::MigrationSchema const*, google::protobuf::Message
const* const*, unsigned int const*, google::protobuf::MessageFactory*,
google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**,
google::protobuf::ServiceDescriptor const**)", referenced from:
helloworld::protobuf_helloworld_2eproto::(anonymous
namespace)::protobuf_AssignDescriptors() in helloworld.pb.o
"google::protobuf::internal::fixed_address_empty_string[abi:cxx11]",
referenced from:
google::protobuf::internal::GetEmptyStringAlreadyInited[abi:cxx11]() in
helloworld.pb.o
google::protobuf::internal::GetEmptyStringAlreadyInited[abi:cxx11]() in
greeter_client.o
"google::protobuf::Message::GetTypeName[abi:cxx11]() const", referenced from:
vtable for helloworld::HelloReply in helloworld.pb.o
vtable for helloworld::HelloRequest in helloworld.pb.o
"google::protobuf::Message::InitializationErrorString[abi:cxx11]() const",
referenced from:
vtable for helloworld::HelloReply in helloworld.pb.o
vtable for helloworld::HelloRequest in helloworld.pb.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
make: *** [greeter_client] Error 1
please help me with the above errors..
Thanks
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