The `LD_LIBRARY_PATH` should contains the `lib` folder from the install space of the workspace. That seems to be missing and that could be the reason why the typesupport libraries are not found. Please make sure to source `/path/install/local_setup.bash` and check that `/path/install/lib` is in the `LD_LIBRARY_PATH` afterwards. --- [Visit Topic](https://discourse.ros.org/t/talker-example-issue-with-beta-1/992/17) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: