Could not create transport stream for port joystick with transport id 3

[roboticsai]

when i run the contoller-yobot package, and run the youbot.lua script. i'm getting below error:

147.518 [ Warning][rttlua-gnulinux::main()] The protocol with id 3 did not register a fall-back handler for unknown types!
147.518 [ Warning][rttlua-gnulinux::main()] triggered by: unknown_t which does not have a transport.
147.518 [ ERROR ][rttlua-gnulinux::main()] Could not create transport stream for port joystick with transport id 3
147.518 [ ERROR ][rttlua-gnulinux::main()] No such transport registered. Check your policy.transport settings or add the transport for type unknown_t
at thi line i'm getting this error:

depl:stream("teleop.joystick",cp)
I have started the joy_node from joy package provided by ros.

[dbdxnuliba]

hello ,do you solve the problem