Generate file .mavlink

How to generate or read .mavlink file for drone autopilot in groundsdk?
I have uploaded the .mavlink file on groundsdk, but the start button is still desable


The Unavailability reasons row gives clear indications about the flight plan piloting interface ability to be activated.
According to the screenshot you provided:

  • The drone GPS accuracy is too weak (you should be in an outdoor environment and wait for GPS fix),
  • The drone is not calibrated (you can easily calibrate it with the FreeFlight 6 application).