grpc_cpp_plugin not found

[Nishant Agrawal]

Hi,

I am student of UW-Madison and I am trying to use gRpc for some class project.

I was able to successfully install everything by following the instrctuion but when I try to run hello world program of c++, I get following erros:


root@Nishant-PC:/home/nishant/workspace/grpc/examples/cpp/helloworld# make helloworld.grpc.pb.cc helloworld.pb.cc
protoc -I ../../protos --grpc_out=. --plugin=protoc-gen-grpc=`which grpc_cpp_plugin` ../../protos/helloworld.proto
helloworld.proto:33:8: Option "objc_class_prefix" unknown.

If I try to do make it gives me,

 DEPENDENCY ERROR

You don't have the grpc c++ protobuf plugin installed in your path.
Please install grpc. You can find it here:

   https://github.com/grpc/grpc

Here is what I get when trying to detect if you have the plugin:

which grpc_cpp_plugin
make: [system-check] Error 1 (ignored)


make: *** [system-check] Error 1

I tried to search for instruction to install grpc_cpp_plugin but not able to find it.
It would be great if someone could help me here.

[madhuka...@gmail.com]

I am facing the same issue, does anybody has a solution for this?

Thanks,

Madhukar

[madhuka...@gmail.com]

Finally found out the issue... 

I was trying to run the helloworld server even before I built the grpc from source.

Solution: 

Prereq: 

Linux: [sudo] apt-get install build-essential autoconf libtool

MAC: [sudo] xcode-select --install

Build from source using the below commands

 $ git clone https://github.com/grpc/grpc.git
 $ cd grpc
 $ git submodule update --init
 $ make
 $ [sudo] make install

On Sunday, September 20, 2015 at 2:31:15 PM UTC-7, Nishant Agrawal wrote:

[vikash2...@gmail.com]

I am facing simir issue:

<<
git clone https://github.com/grpc/grpc.git
git submodule update --init
make install prefix=/home/ubuntu/GRPC_LOCAL/latest_grpc/grpc/build/
>>

Now it is failing with below error.
[CXX]     Compiling src/cpp/util/string_ref.cc
[CXX]     Compiling src/cpp/util/time.cc
[HOSTCXX] Compiling src/compiler/cpp_generator.cc
[HOSTCXX] Compiling src/compiler/csharp_generator.cc
In file included from src/compiler/csharp_generator.cc:40:0:
./src/compiler/csharp_generator.h:39:58: fatal error: google/protobuf/compiler/csharp/csharp_names.h: No such file or directory
 #include <google/protobuf/compiler/csharp/csharp_names.h>
                                                          ^
compilation terminated.
make: *** [/home/ubuntu/GRPC_LOCAL/latest_grpc/grpc/objs/opt/src/compiler/csharp_generator.o] Error 1

[Paul Grosu]

Did you run the make step by itself before performing make install, and do you install protobuf beforehand?

[Vikash Kumar]

I have ran make. Before the make install.
During make ...I have also seen same error.
Regarding protobuf it is already installed at my setup. Version 3.0.0

Regards
Vikash