In the master slave application. Is it different for different Distributions? I did get the master 11-15 to work fine on 18.04 with ROS2 Dashing Diademata. It’s the slave that is missing in action. 
OH it is not the ID’s. I missed the error when installing. The open_manipulator_master_slave has a CMake error. Is the src fill missing?
Oh, I’m also getting the error while compiling the package.
Let me check this issue, but may take a few weeks.
Thanks for reporting the issue!
Thanks Will. This will be the only release/Distro were your OpenManulaptor-X models still work as far as I can tell, with ROS Kinect gone or depreciated and all.