Qgorundcontrol with x plane 11

when I use qgroundcontrol HIL with x plane 11 … it gives a message “binding socket failed” in HIL config window in qgroundcontrol . what’s the problem please ?

FYI: HITL simulation with QGC is no longer supported going forward. It has been removed from 4.0. You might be able to find someone who used it previsouly with older builds but hard to say.