Error reads:
"EndgameCombat::on_robot_built_entity (ID 14)EndgameCombat/control.lua:487: bad argument #2 to '__index' (string expected, got nil)
This error popped up after I placed a ghost 'Manual Orbital Strike' and just as my construction robot flew over and 'built' it. Also at this time the 'Destroyer Satellite Uplink' was built but not powered.