Calling goHome on FlightController throws internal Rx exception.

[justintuchek]

SDK Version: 3.4
Android Devices

Nexus 9: API 24
Nexus 6P: API 25
DJI Devices
Phantom 3 Professional
--Remote Controller Firmware: 1.6.0
--Flight Controller Firmware: 2.04.14.05
--Gimbal Firmware: 01.44.00.00
--Camera Firmware: 01.30.50.36
Inspire 1 Pro
--Remote Controller Firmware: 1.7.4.0
--Flight Controller Firmware: 2.0.4.20.18
--Gimbal Firmware: 1.29.00.92
--Camera Firmware: 1.9.1.10

When a mission is playing, calling goHome on the flight controller will sometimes cause an exception to be thrown. for rx.exceptions.OnErrorNotImplementedException and says to contact for developer support.

11-08 09:55:45.592 15892-16003/com.botlink.app E/UncaughtException: rx.exceptions.OnErrorNotImplementedException: Server error, please contact dev@dji.com for help.
at rx.internal.util.InternalObservableUtils$ErrorNotImplementedAction.call(InternalObservableUtils.java:386)
at rx.internal.util.InternalObservableUtils$ErrorNotImplementedAction.call(InternalObservableUtils.java:383)
at rx.internal.util.ActionSubscriber.onError(ActionSubscriber.java:44)
at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:152)
at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:115)
at rx.internal.operators.OnSubscribeFromEmitter$BaseAsyncEmitter.onError(OnSubscribeFromEmitter.java:143)
at rx.internal.operators.OnSubscribeFromEmitter$BufferAsyncEmitter.drain(OnSubscribeFromEmitter.java:392)
at rx.internal.operators.OnSubscribeFromEmitter$BufferAsyncEmitter.onError(OnSubscribeFromEmitter.java:343)
at com.botlink.app.data.connection.dji.function.DJIFunction$1.onResult(DJIFunction.java:23)
at dji.internal.a.b.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.os.HandlerThread.run(HandlerThread.java:61)
Caused by: com.botlink.app.data.connection.dji.extras.DJIException: Server error, please contact dev@dji.com for help.
at com.botlink.app.data.connection.dji.function.DJIFunction$1.onResult(DJIFunction.java:23) 
at dji.internal.a.b.run(Unknown Source) 
at android.os.Handler.handleCallback(Handler.java:751) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:154) 
at android.os.HandlerThread.run(HandlerThread.java:61) 
11-08 09:55:45.804 15892-16003/com.botlink.app D/FirebaseCrashApiImpl: throwable rx.exceptions.OnErrorNotImplementedException: Server error, please contact dev@dji.com for help.
11-08 09:55:45.898 15892-16003/com.botlink.app E/AndroidRuntime: FATAL EXCEPTION: dji_background_thread
Process: com.botlink.app, PID: 15892
rx.exceptions.OnErrorNotImplementedException: Server error, please contact dev@dji.com for help.
at rx.internal.util.InternalObservableUtils$ErrorNotImplementedAction.call(InternalObservableUtils.java:386)
at rx.internal.util.InternalObservableUtils$ErrorNotImplementedAction.call(InternalObservableUtils.java:383)
at rx.internal.util.ActionSubscriber.onError(ActionSubscriber.java:44)
at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:152)
at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:115)
at rx.internal.operators.OnSubscribeFromEmitter$BaseAsyncEmitter.onError(OnSubscribeFromEmitter.java:143)
at rx.internal.operators.OnSubscribeFromEmitter$BufferAsyncEmitter.drain(OnSubscribeFromEmitter.java:392)
at rx.internal.operators.OnSubscribeFromEmitter$BufferAsyncEmitter.onError(OnSubscribeFromEmitter.java:343)
at com.botlink.app.data.connection.dji.function.DJIFunction$1.onResult(DJIFunction.java:23)
at dji.internal.a.b.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.os.HandlerThread.run(HandlerThread.java:61)
Caused by: com.botlink.app.data.connection.dji.extras.DJIException: Server error, please contact dev@dji.com for help.
at com.botlink.app.data.connection.dji.function.DJIFunction$1.onResult(DJIFunction.java:23) 
at dji.internal.a.b.run(Unknown Source) 
at android.os.Handler.handleCallback(Handler.java:751) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:154) 
at android.os.HandlerThread.run(HandlerThread.java:61) 
11-08 09:55:46.460 582-633/? E/ConnectivityService: RemoteException caught trying to send a callback msg for NetworkRequest [ id=39, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]

[justintuchek]

I have tried stopping the mission before telling the flight controller to return home, and now it is yielding the same exception as above.

[oliverou]

Hi @jtuchek , after testing, we cannot reproduce the issue. We will launch a new version of Android SDK very soon. You can try if it's fixed then. Thanks!

[oliverou]

Hi @jtuchek, we have launched the Android SDK 3.4.1, please try this new version and check if the issue still exist. Thanks!