My partner and I are currently working with the OpenMANIPULATOR-PRO model using ROS Noetic on Ubuntu 24.04, and we’ve encountered a persistent communication issue between the open_manipulator_controller node and the open_manipulator_control_gui in the Gazebo simulated environment. When attempting to send commands through the GUI, the following error consistently appears: "[ERR!!] Failed to send service"
Despite following the official setup instructions and confirming that both nodes are running, the GUI fails to communicate with the controller node. We have verified that both packages are built and sourced correctly, rebuilt the catkin workspace, ensured all dependencies are installed, confirmed all topics under /joint_states and /tf are publishing, and attempted to reinstall the packages for the OpenMANIPULATOR-PRO model simulation from GitHub.
Could you please advise us on how to resolve this communication failure or provide access to a correct version of the open_manipulator_controller package (if required on Noetic ROS)?
Any documentation, patch, or repository reference you could share would be greatly appreciated. We would be happy to provide any more details which could be beneficial to the resolution of this issue if you request them.