dji-sdk - 大疆错误: Execution could not be executed

Question

有时我一直在努力理解为什么在尝试创建航路点任务时任务管理器会收到错误“无法执行执行”。我附上了我正在使用的工作流程，如果您能看一下，我将不胜感激。

1.Initialize FlightController : 
mFlightController = ((Aircraft) product).getFlightController();
    getProductInstance().getGimbal()
                    .rotate(new Rotation.Builder().pitch(-180)
                            .mode(RotationMode.SPEED)
                            .yaw(Rotation.NO_ROTATION)
                            .roll(Rotation.NO_ROTATION)
                            .time(0)
                            .build(), new CommonCallbacks.CompletionCallback() {
                                @Override
                                public void onResult(DJIError error) {
                                }
                    });
mFlightController.setControlMode(ControlMode.SMART, ... );
mFlightController.setMaxFlightHeight(499.0f , ... );
mFlightController.setMaxFlightRadiusLimitationEnabled(false, ...);
mFlightController.setLandImmediatelyBatteryThreshold(15, ...);
mFlightController.setStateCallback(new FlightControllerState.Callback() {
            @Override
            public void onUpdate(@NonNull FlightControllerState flightControllerState) {
        //Check GPS level
    }
}
mFlightController.setHomeLocationUsingAircraftCurrentLocation( ... );



  2. Check Batter status :
getProductInstance().getBattery()
            setStateCallback(new BatteryState.Callback() {
                    @Override
                    public void onUpdate(BatteryState djiBatteryState) { ... } ;
    });

    3. initialize Mission Manager : 
mMissionManager = new WapointMissionOperator();
mMissionManager.addListener( listener );
    //LIstener does a couple calculations when reaching a waypoint. 

 4. Camera :
mCamera = getProductInstance().getCamera();
mCamera.setMode(SettingsDefinitions.CameraMode.RECORD_VIDEO, ... );
mCamera.setSystemStateCallback(new SystemState.Callback() { ... });


 5. Creating waypoint mission Builder : 
WaypointMission.Builder builder = new WaypointMission.Builder();
builder.autoFlightSpeed( value );
builder.maxFlightSpeed( value );
builder.setExitMissionOnRCSignalLostEnabled(false);
    builder.finishedAction(WaypointMissionFinishedAction.AUTO_LAND);
    builder.flightPathMode(WaypointMissionFlightPathMode.NORMAL);
    builder.gotoFirstWaypointMode(WaypointMissionGotoWaypointMode.SAFELY);
    builder.headingMode(WaypointMissionHeadingMode.USING_WAYPOINT_HEADING);
    builder.setGimbalPitchRotationEnabled(true);

 6. Creating waypoints : 
    for (int i = 0; i < waypointCount; i++) {
        dji.common.mission.waypoint.Waypoint djiwp = new dji.common.mission.waypoint.Waypoint(lat, lon, alt);
        djiwp.heading = 0; //facing true north
        djiwp.addAction(new WaypointAction(WaypointActionType.STAY, 0)); //just passby 
        builder.addWaypoint(djiwp);
    }

  7. finishing up with builder:
WaypointMission mission = builder.build();

 8. starting mission :
mMissionManager.loadMission(mission);
if (WaypointMissionState.READY_TO_RETRY_UPLOAD.equals(mMissionManager.getCurrentState())
                              ||   WaypointMissionState.READY_TO_UPLOAD.equals(mMissionManager.getCurrentState())) {

    mMissionManager.uploadMission(new CommonCallbacks.CompletionCallback() { ... } );
}
mFlightController.setHomeLocationUsingAircraftCurrentLocation( ... ); //redo just to check.
mFlightController.setConnectionFailSafeBehavior(ConnectionFailSafeBehavior.GO_HOME, ...);
mMissionManager.startMission(new CommonCallbacks.CompletionCallback() { ... });

Answer 1

在尝试执行之前，请确保已准备好执行。在我这样做之前，我经历过很多次失败。