[bazel_ros2_rules] Handle's typesupport identifier (rosidl_typesupport_cpp) is not supported by this library

[lgulich]

Hi,

First of all thanks for creating this great tool!

I am running a ROS node with a custom message, both built with the bazel_ros2_rules from this repo.
Unfortunately, I am encountering the following runtime error Handle's typesupport identifier (rosidl_typesupport_cpp) is not supported by this library.

Interestingly this error only occurs when I ingest a ROS install space that I built myself. (I followed the official instructions to build this install space ROS from source on Ubuntu 20.04).

If I use the example ROS install space from https://repo.ros2.org/ci_archives/nightly-cyclonedds/ everything works fine.

If I use my self-built install space but don't use any messages that are built from bazel_ros2_rules then also everything works fine. Ie. my node only throws the runtime error if I use my self-built install space and a bazel-built message.

• Does anybody know why this happens?

• If not does anybody know how the install space at https://repo.ros2.org/ci_archives/nightly-cyclonedds/ was generated? This would probably allow me to debug the issue further.

Thanks for any help in advance!

The full log of the runtime error is here:

1699631909.646568 [0] _talker_no: selected interface "lo" is not multicast-capable: disabling multicast

>>> [rcutils|error_handling.c:108] rcutils_set_error_state()
This error state is being overwritten:

  'Type support not from this implementation. Got:
    Handle's typesupport identifier (rosidl_typesupport_cpp) is not supported by this library, at /tmp/binarydeb/ros-humble-rosidl-typesupport-cpp-2.0.1/src/type_support_dispatch.hpp:111
    Could not load library libexample_msgs__rosidl_typesupport_introspection_cpp.so: dlopen error: libexample_msgs__rosidl_typesupport_introspection_cpp.so: cannot open shared object file: No such file or directory, at /tmp/binarydeb/ros-humble-rcutils-5.1.3/src/shared_library.c:99, at /tmp/binarydeb/ros-humble-rosidl-typesupport-cpp-2.0.1/src/type_support_dispatch.hpp:76
while fetching it, at /tmp/binarydeb/ros-humble-rmw-cyclonedds-cpp-1.3.4/src/rmw_node.cpp:1958'

with this new error message:

  'type_support is null, at /tmp/binarydeb/ros-humble-rmw-cyclonedds-cpp-1.3.4/src/rmw_node.cpp:2277'

rcutils_reset_error() should be called after error handling to avoid this.
<<<
terminate called after throwing an instance of 'rclcpp::exceptions::RCLError'
  what():  could not create publisher: type_support is null, at /tmp/binarydeb/ros-humble-rmw-cyclonedds-cpp-1.3.4/src/rmw_node.cpp:2277, at /tmp/binarydeb/ros-humble-rcl-5.3.5/src/rcl/publisher.c:116