[ros-users] [Discourse.ros.org] [Next Generation ROS/Troubleshooting] ROS2 beta on Ubuntu 16.04 fails

[Uwe Fechner]

The following changes solved two problems:

Firstly, the environment variable LD_LIBRARY_PATH is deleted by
Ubuntu for security reasons. Additional paths have to be added
to a new file in the directory /etc/ld.so.conf.d

For example by doing

sudo gedit /etc/ld.so.conf.d/ros2.conf

and adding the line:

    /home/<username>/ros2_install/ros2-linux/lib

    Replace <username> with your own username.

and executing
     
    sudo ldconfig

Furthermore, one package was missing:

sudo apt-get install libpocofoundation9v5

-----------------------------------------

Now I get a different error message:

    ufechner at tuxedo:~$ talker
    terminate called after throwing an instance of 'std::runtime_error'
      what():  could not create publisher: type support not from this implementation, at /home/rosbuild/ci_scripts/ws/src/ros2/rmw_fastrtps/rmw_fastrtps_cpp/src/functions.cpp:782, at /home/rosbuild/ci_scripts/ws/src/ros2/rcl/rcl/src/rcl/publisher.c:81
    Aborted (core dumped)
    ufechner at tuxedo

Any idea, how to fix this?

Uwe






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