I did this:
$ sudo /usr/bin/configure_robotics_dt
/usr/bin/configure_robotics_dt: line 11: warning: command substitution: ignored null byte in input
Using am335x-boneblack-wireless-roboticscape.dtb
making backup copy of /boot/uEnv.txt
Using previously listed kernel 4.14.71-ti-r80
Robotics Cape Device Tree Configured and Installed
Restarted or not, there are errors in example applications like:
ERROR: in init_led, failed to open LED file handle: No such file or directory
serial ports do not work, no 6V with rc_test_servos etc.