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Pulsar C++ client compilation failed on Ubuntu 18.04

See original GitHub issue

Describe the bug Could not get c++ client built on my Ubuntu 18.04 To Reproduce Follwed steps from official tutorial

  1. git clone
  2. apt-get install cmake libssl-dev libcurl4-openssl-dev liblog4cxx-dev \ libprotobuf-dev protobuf-compiler libboost-all-dev google-mock libgtest-dev libjsoncpp-dev
  3. # libgtest-dev version is 1.18.0 or above cd /usr/src/googletest sudo cmake . sudo make sudo cp ./googlemock/libgmock.a ./googlemock/gtest/libgtest.a /usr/lib/
  4. cd /usr/src/gmock sudo cmake . sudo make sudo cp libgmock.a /usr/lib
  5. cd pulsar-client-cpp cmake . make

Could not make, it says: error: ‘class google::protobuf::FileDescriptorSet’ has no member named ‘ByteSizeLong’; did you mean ‘ByteSize’? lib/CMakeFiles/PULSAR_OBJECT_LIB.dir/build.make:1605: recipe for target 'lib/CMakeFiles/PULSAR_OBJECT_LIB.dir/' failed

Error image

Try to fix the error As suggsted, changed ByteSizeLong to ByteSize in ./pulsar-client-cpp/lib/ code, then got new error:

PaddingDemo.proto:25:12: Explicit 'optional' labels are disallowed in the Proto3 syntax. To define 'optional' fields in Proto3, simply remove the 'optional' label, as fields are 'optional' by default. tests/CMakeFiles/main.dir/build.make:68: recipe for target 'generated/tests/' failed


Desktop (please complete the following information):

  • OS: [Ubuntu 18.04]

Additional context I guess it has to do with protobuf version, but could not find any more information. Thank you!

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:8 (4 by maintainers)

github_iconTop GitHub Comments

BewareMyPowercommented, Mar 17, 2022

TL; DR the example code is wrong, we need to fix the doc. /cc @Anonymitaet

You should add a declaration before createProducer:

    Client client("pulsar://localhost:6650");

    Producer producer;  // **See here**
    Result result = client.createProducer("persistent://public/default/my-topic", producer);

there is a follow-up step called install Debian which I do not know what it is for (I am using Ubuntu)

It’s not a follow-up step. It’s a parallel step.

When you install a C++ SDK, it means following files need to be generated:

  • C++ headers (*.h)
  • C++ libraries, it can be either a dynamic library (*.so on Linux) or a static library (*.a on Linux).

A *.deb file is a pre-built Debian C++ package. (Ubuntu is derived from Debian) i.e. the apt install ./apache-pulsar-client.deb command will install the C++ headers and libraries to the target directory. Since the pre-built Debian C++ package doesn’t include a static library, you won’t see a *.a file.

However, if you have the source code of the C++ SDK, you can compile it by yourself, i.e. run cmake and make commands (or ./configure for C++ libraries that use GNU Autotools to build). At last, you need to run make install, which needs the superuser permission, to copy these files (*.h, *.so, *.a) to the target directory. You can also copy these files manually.

In short, you can choose to either compile from source or install from a pre-built package. The advantage of compiling from source is that you can get the latest library.

github-actions[bot]commented, May 28, 2022

The issue had no activity for 30 days, mark with Stale label.

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