No GPS fix , nor no HDOP ,using SITL - hint welcome

I am using an old version of ardupilot 3.2.1
I am trying to use the SITL , I am able to get the console , the map , and also connect it to Mission Planner.
but the hdop is at zero , no drone on screen , and no GPS FIX.

any hint where I should look for ?
is it a problem with the pysim? , the sitl code ? , or mavproxy ?



Does MAVProxy show a GPS lock and position? Is Mission Planner connecting to the correct IP and port?

No it didn’t ,
the problem was that due to dos unix suffix , the sim_multicopter code didn’t work .
problem solved , thanks !