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cnboonhan avatar cnboonhan commented on August 12, 2024 2

Hi, just sneaking in this link which might help.

it is for protobuf 3.0.0 but it hopefully works for removing protobuf 3.4.0, which is what we want

https://stackoverflow.com/questions/35896335/how-can-i-uninstall-protobuf-3-0-0

We should change the protobuf version in that thread to 3.4.0.

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aaronchongth avatar aaronchongth commented on August 12, 2024 1

looks like you found the problem, it is also referenced in this issue in the past too.

looks like this might be what you need, https://stackoverflow.com/questions/35896335/how-can-i-uninstall-protobuf-3-0-0

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aaronchongth avatar aaronchongth commented on August 12, 2024

This is probably due to an already existing installation of protobuf and its compiler, it looks like this might be a similar issue to this, https://answers.gazebosim.org//question/20101/protobuf-version-error-on-ubuntu-1804-and-gazebo9/

Could you provide some information about your system installation of protobuf?

dpkg -l | grep gazebo9
dpkg -l | grep protobuf

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prashantking avatar prashantking commented on August 12, 2024

attaching two log files with the outputs of above commands
gazebo9_info.txt
protobuf_info.txt

dpkg -l | grep gazebo9

ii  gazebo9                   9.12.0-1~bionic                                  amd64        Open Source Robotics Simulator
ii  gazebo9-common            9.12.0-1~bionic                                  all          Open Source Robotics Simulator - Shared files
ii  gazebo9-dbg               9.12.0-1~bionic                                  amd64        Open Source Robotics Simulator - Debugging Symbols
ii  gazebo9-doc               9.12.0-1~bionic                                  all          Open Source Robotics Simulator - Documentation
ii  gazebo9-plugin-base       9.12.0-1~bionic                                  amd64        Open Source Robotics Simulator - base plug-ins
ii  libgazebo9:amd64          9.12.0-1~bionic                                  amd64        Open Source Robotics Simulator - shared library
ii  libgazebo9-dev:amd64      9.12.0-1~bionic                                  amd64        Open Source Robotics Simulator - Development Files

dpkg -l | grep protobuf

ii  libprotobuf-dev:amd64          3.0.0-9.1ubuntu1                    amd64        protocol buffers C++ library (development files)
ii  libprotobuf-lite10:amd64       3.0.0-9.1ubuntu1                    amd64        protocol buffers C++ library (lite version)
ii  libprotobuf10:amd64            3.0.0-9.1ubuntu1                    amd64        protocol buffers C++ library
ii  protobuf-compiler              3.0.0-9.1ubuntu1                    amd64        compiler for protocol buffer definition files
ii  python3-protobuf               3.0.0-9.1ubuntu1                    amd64        Python 3 bindings for protocol buffers

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aaronchongth avatar aaronchongth commented on August 12, 2024

that looks alright to me. did your system already have an installation of gazebo9? or was it installed using the rosdep step mentioned in the documentation?

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prashantking avatar prashantking commented on August 12, 2024

I have a default gazebo installation from

sudo apt-get install ros-melodic-desktop-full

other than this i tried google cartographer which shows protobuf from source as 3.4.0.

$ export PATH=/usr/local/bin:$PATH
$ protoc --version
libprotoc 3.4.0

can this create any issue ?

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prashantking avatar prashantking commented on August 12, 2024

rmf_demo needs 3.4.0 version or 3.0.0 version of protoc. ?
since cartographer needs 3.4.0 and default is 3.0.0 which one i should remove ?

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Yadunund avatar Yadunund commented on August 12, 2024

This is an issue that has come up before #21. Gazebo9 requires protobuf 3.0.0 while cartographer installs 3.4.0. Could you try removing 3.4.0 and confirm if that resolves the issue?

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prashantking avatar prashantking commented on August 12, 2024

hi, its working now i tried few of the approaches and it worked with this:
go to build directory of protobuf 3.4.0
and then run this command

$ cd build
$ sudo cat install_manifest.txt | sudo xargs rm

and after this when you compile rmf_demo it works fine.
although i doubt that cartographer is going to work after this but that can be solved by building protbuf3.4.0 locally in a workspace.

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