Hello @k-okada,
It looks like the package rwt_app_chooser is not building on any platform on the ROS Noetic buildfarm.
• Ubuntu Focal amd64
• Ubuntu Focal armhf
• Ubuntu Focal armv8
I am removing the release of this package and the dependant package visualization_rwt from Noetic so the buildfarm doesn't keep trying to build it. Please make another release with bloom-release once the build failure is fixed.