SITL setup issue: xterm: Xt error: Can't open display: localhost:10.0

Walking through the SITL vagrant setup instructions, on a windows 10 machine, everything ok until i hit this during the ‘startup’ process (see error output below):

This looks like i just need an x-windows program running in windows, but nothing of the sort was mentioned in what looked like otherwise relatively complete setup instructions…so, wanted to check…

thanks in advance!

the error output:

uild commands will be stored in build/sitl/compile_commands.json
‘build’ finished successfully (16m45.972s)
SIM_VEHICLE: Using defaults from (/vagrant/Tools/autotest/default_params/copter.parm)
SIM_VEHICLE: Run ArduCopter
SIM_VEHICLE: “/vagrant/Tools/autotest/run_in_terminal_window.sh” “ArduCopter” “/vagrant/build/sitl/bin/arducopter” “-S” “–model” “+” “–speedup” “1” “–defaults” “/vagrant/Tools/autotest/default_params/copter.parm” “-I0”
SIM_VEHICLE: Run MavProxy
SIM_VEHICLE: “mavproxy.py” “–out” “10.0.2.2:14550” “–out” “10.0.2.2:14551” “–master” “tcp:127.0.0.1:5760” “–sitl” “127.0.0.1:5501”
RiTW: Starting ArduCopter : /vagrant/build/sitl/bin/arducopter -S --model + --speedup 1 --defaults /vagrant/Tools/autotest/default_params/copter.parm -I0
xterm: Xt error: Can’t open display: localhost:10.0
Connect tcp:127.0.0.1:5760 source_system=255
[Errno 111] Connection refused sleeping
[Errno 111] Connection refused sleeping
[Errno 111] Connection refused sleeping
[Errno 111] Connection refused sleeping
Failed to connect to tcp:127.0.0.1:5760 : [Errno 111] Connection refused
SIM_VEHICLE: Killing tasks
Connection to 127.0.0.1 closed.