does ros2-web-bridge support to pub or sub msgs created by user ?

I want to use ros2-web-bridge to transport msgs created by myself, but a error occurs as follow: ros2-web-bridge:Bridge Exception caught in Bridge.executeCommand(): Error: The message required does not exist: entity_msgs, msg, EntityMsg @minggangw

[minggangw]

Yes, it supports. The process of generating the messages from user defined .msg or .srv is handled by rclnodejs, not the ros2-web-bridge. To achieve this, please add the path of your .msg files to the AMENT_PREFIX_PATH variable.

If you add these .msg files after the installation of ros2-web-bridge, you have to manually reinstall the rclnodejs which will trigger the generation again. (actually, the rclnodejs has function which can generate the messages compulsively, but the bridge doesn’t make use of it)

[rukie]

Thank you for all the help, sorry this isn’t directly related to ros2-web-bridge anymore. I’ve done the following:

cd ~/ros2_ws
colcon build --symlink-install --merge-install

with no issues, followed by

source ~/ros2_ws/install/local_setup.bash

and I get

not found: /home/rukie/ros2_ws/install/share/$packagehere/local_setup.sh
not found: /home/rukie/ros2_ws/install/share/$packagehere/local_setup.bash

I guess I’m still not sure what merge-install does exactly.

After reading about overlays I’m pretty confident I’d want to source local_setup.bash for ROS, and setup.bash for my ackermann message.

I’m a little stuck here.