WaypointMissionOperator checkParameters never returns with Matrice 100 / 600

[rabbishuki]

The same code works perfectly on the P4A but fails on the Matrice 100.

Here are the relevant parts of my code in Kotlin.

1. Create a list of waypoints.

   val waypointList: List<Waypoint> = data.points.map {
   val waypoint = Waypoint(it.latitude, it.longitude, it.altitude)
   waypoint.speed = 3
   waypoint.heading = 0
   waypoint.gimbalPitch = 0
   waypoint.turnMode = WaypointTurnMode.CLOCKWISE
   
   waypoint.actionRepeatTimes = 1
   waypoint.actionTimeoutInSeconds = 3
   waypoint.cornerRadiusInMeters = 1
   waypoint
   }

2. Create a WaypointMission.Builder Object

   val mission = WaypointMission.Builder()
   .waypointList(waypointList)
   .waypointCount(waypointList.size)
   .autoFlightSpeed(10)
   .repeatTimes(1)
   .setGimbalPitchRotationEnabled(false)
   .setExitMissionOnRCSignalLostEnabled(false)
   .finishedAction(WaypointMissionFinishedAction.NO_ACTION)
   .maxFlightSpeed(13)
   .flightPathMode(WaypointMissionFlightPathMode.CURVED)
   .headingMode(WaypointMissionHeadingMode.AUTO)
   .gotoFirstWaypointMode(WaypointMissionGotoWaypointMode.POINT_TO_POINT)

3. mission.checkParameters()

4. WaypointOperator.loadMission(mission.build())

5. WaypointOperator.uploadMission()

With the P4A: the code continues with no error, and goes off to the waypoint mission. With Matrice 100, the checkParameters function in step 3 returns no result and the code just stalls here with the WaypointOperator.currentState staying at READY_TO_UPLOAD

I have tried everything in the last 2 days, and the only thing I can guess is that I am missing some parameter that the Matrice 100 needs, but I have no clue what that might be, and can't find anything in the documentation about it.

[rabbishuki]

Just checked the Matrice 600, and it also doesn't work.

[rabbishuki]

Apparently this is a bug with version 4.11

Prerequisites:

• An android phone installed with the sample SDK updated to 4.11,
• A Matrice 100 / 600 connected to the DJI Assistant 2

Steps to reproduce:

1. Open the sample SDK
2. Click "Open" after the drone connects
3. Click "New Waypoint Mission Operator"
4. Click "Load"
5. App crashes with the following stack

   com.dji.sdk.sample E/AndroidRuntime: FATAL EXCEPTION: main
   Process: com.dji.sdk.sample, PID: 14107
   java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object java.util.Map.get(java.lang.Object)' on a null object reference
   at dji.common.mission.waypoint.Waypoint.checkParameters(Unknown Source:15)
   at dji.common.mission.MissionUtils.checkEachWaypointValid(Unknown Source:18)
   at dji.common.mission.MissionUtils.checkWaypointMissionParameters(Unknown Source:44)
   at dji.common.mission.waypoint.WaypointMission$Builder.checkParameters(Unknown Source:10)
   at dji.internal.mission.abstraction.waypoint.WaypointMissionAbstraction.a(Unknown Source:0)
   at dji.sdk.mission.waypoint.WaypointMissionOperator.loadMission(Unknown Source:32)
   at com.dji.sdk.sample.demo.missionoperator.WaypointMissionOperatorView.onClick(:107)
   at android.view.View.performClick(View.java:6310)
   at android.view.View$PerformClick.run(View.java:24970)
   at android.os.Handler.handleCallback(Handler.java:794)
   at android.os.Handler.dispatchMessage(Handler.java:99)
   at android.os.Looper.loop(Looper.java:176)
   at android.app.ActivityThread.main(ActivityThread.java:6662)
   at java.lang.reflect.Method.invoke(Native Method)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)

[dji-dev]

Public comment from Luce Luo in Zendesk ticket #29940:

Dear Customer,

Thank you for contacting DJI. Sorry, this issue has been reported to the engineer. Please pay attention to the next release and use a lower version such as v4.10 for the being time.

Thanks,

Luce Luo DJI Dev Team

[dji-dev]

Public comment from Luce Luo in Zendesk ticket #29940:

Dear Customer,

Thank you for contacting DJI. Great to tell you this good news. After confirming, this problem only occurs when your aircraft is not mounting the camera. So, for the temporary workaround, you can mount a camera on your drone when you using v4.11. Also, this issue will be fixed in the coming v4.11.1 official release.

Thanks,

Luce Luo DJI Dev Team