as I try to run XPlane 11, a message comes up saying there's a Cesna 172 Skyhawk missing from tutorials, essential to run it.....asks me to update, and when I try to do so, it tells me there's a problem with......X-Plane11/Aircraft/Laminar Research/Cesna 172 SP/Objects/Instruments/Fuel_egt_ff_oil_vac_amp/fuel_egt_ff_oil_vac_amp.obj.