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rmw implementation error running ros2 examples

asked 2019-05-22 08:17:08 -0500

RodBelaFarin gravatar image

I tried to run the basic rclcpp examples from the colcon tutorial https://index.ros.org/doc/ros2/Tutori...

after installing ROS2 Crystal Clemmys regarding to this instructions https://index.ros.org/doc/ros2/Instal... on my Ubuntu 18.04 system.

running the subscriber example

ros2 run examples_rclcpp_minimal_subscriber subscriber_member_function

i end up in an error:

terminate called after throwing an instance of 'rclcpp::exceptions::RCLError'
  what():  failed to initialized rcl init options: failed to load shared library of rmw implementation. Exception: Cannot load library: /opt/ros/crystal/lib/librmw_fastrtps_cpp.so: undefined symbol: _ZTVN8eprosima8fastrtps27DataRepresentationQosPolicyE, at /tmp/binarydeb/ros-crystal-rmw-implementation-0.6.1/src/functions.cpp:136, at /tmp/binarydeb/ros-crystal-rcl-0.6.5/src/rcl/init_options.c:55

any hints on how to solve this?

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same thing happening to me too today. I left some terminals open from yesterday and running things there was ok. as soon as i sourced a new environment i got the same error.

pantphotiou gravatar imagepantphotiou ( 2019-05-23 13:53:47 -0500 )edit

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answered 2019-06-11 04:18:26 -0500

PratNag gravatar image

I had the same problem but on Windows after installing Ros2 from binaries. Building ROS2 from source solved the problem for me.

Other solution I saw was to install OpenSplice and set the rmw implemenation to that.\

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Asked: 2019-05-22 08:17:08 -0500

Seen: 72 times

Last updated: Jun 11