Update failed: there is something different between your sims : 1.0.4 vs 1.0.5, X Plane 10.36 vs X Plane 10.45, xjoymap.ini vs no xjoymap.ini, lua script, or something else creating commands or datarefs.
Can't find DataRef: this is only a warning in the log file
Waiting for a readme included in the .zip, here is a checklist:
Before the connection
Same state of the plane. fuel, payload, CG, Cold and dark, Turn Around, Ready to fly.
After the connection
If cold and dark, don't use the carts, APU only.
Elevator trim with joystick button only (no mouse).
Airbrakes with mouse, joystick button, keyboard (no axis).
Guards and gear door are not synchronized. Each pilot have to open/close them.
smartco 1.4.3.zip