Flutter | On Android only - Unhandled Exception: MissingPluginException (No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit) #461

orenagiv · 2022-06-15T20:41:51Z

Hello there :)

I'm working on a Flutter plugin which allows to use the DJI SDK for drones.
I'm receiving a raw H264 byte-stream from the DJI SDK > listens to it on the Flutter side > and streams it into the ffmpeg-kit input-pipe to convert into HLS to MP4 format.

It works amazingly well on iOS (thanks @tanersener for this amazing plugin!)

For some reason, when I try to run my example on Android, I get the following error:

Unhandled Exception: MissingPluginException (No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit)

It's probably somehow related to this one:
https://github.com/tanersener/ffmpeg-kit/issues/367
But I'm not using 'isolates' (as far as I know :)
However, I AM using "pigeon" to generate the code between Flutter and the host platform:
https://pub.dev/packages/pigeon

My plugin can be found here:
https://pub.dev/packages/dji

And the example code which uses the plugin with the ffmpeg-kit can be found here:
https://github.com/DragonX-cloud/dji_flutter_plugin/blob/main/example/lib/example.dart

Any ideas would be most welcome 🙏

The text was updated successfully, but these errors were encountered:

tanersener · 2022-06-16T09:13:24Z

Logs are needed to be able to make a comment about it.

orenagiv · 2022-06-16T17:02:05Z

Hi @tanersener

Logs from the Android Studio logcat:

2022-06-16 19:59:05.102 1361-1425/cloud.dragonx.plugin.flutter.djiExample I/flutter: Loading ffmpeg-kit-flutter.
2022-06-16 19:59:05.285 1361-1425/cloud.dragonx.plugin.flutter.djiExample E/flutter: [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: MissingPluginException(No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit)
    #0      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:165:7)
    <asynchronous suspension>
    #1      FFmpegKitInitializer._initialize (package:ffmpeg_kit_flutter/src/ffmpeg_kit_flutter_initializer.dart:313:22)
    <asynchronous suspension>
    #2      FFmpegKitInitializer.initialize (package:ffmpeg_kit_flutter/src/ffmpeg_kit_flutter_initializer.dart:54:7)
    <asynchronous suspension>
    #3      FFmpegKitConfig.init (package:ffmpeg_kit_flutter/ffmpeg_kit_config.dart:50:5)
    <asynchronous suspension>
    #4      FFmpegKitConfig.registerNewFFmpegPipe (package:ffmpeg_kit_flutter/ffmpeg_kit_config.dart:136:7)
    <asynchronous suspension>

Similar logs from VSCode Debug Console:

✓  Built build/app/outputs/flutter-apk/app-debug.apk.
W/FlutterActivityAndFragmentDelegate( 2236): A splash screen was provided to Flutter, but this is deprecated. See flutter.dev/go/android-splash-migration for migration steps.
Connecting to VM Service at ws://127.0.0.1:54651/CUJb4MZTpiI=/ws
D/ViewRootImpl@9ac45be[MainActivity]( 2236): ViewPostIme pointer 0
D/ViewRootImpl@9ac45be[MainActivity]( 2236): ViewPostIme pointer 1
[dji.flutter] Video Feed Start requested
I/flutter ( 2236): Loading ffmpeg-kit-flutter.

════════ Exception caught by services library ══════════════════════════════════
The following MissingPluginException was thrown while activating platform stream on channel flutter.arthenica.com/ffmpeg_kit_event:
MissingPluginException(No implementation found for method listen on channel flutter.arthenica.com/ffmpeg_kit_event)

When the exception was thrown, this was the stack
#0      MethodChannel._invokeMethod
package:flutter/…/services/platform_channel.dart:165
<asynchronous suspension>
#1      EventChannel.receiveBroadcastStream.<anonymous closure>
package:flutter/…/services/platform_channel.dart:506
<asynchronous suspension>
════════════════════════════════════════════════════════════════════════════════
E/flutter ( 2236): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: MissingPluginException(No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit)
E/flutter ( 2236): #0      MethodChannel._invokeMethod
package:flutter/…/services/platform_channel.dart:165
E/flutter ( 2236): <asynchronous suspension>
E/flutter ( 2236): #1      FFmpegKitInitializer._initialize
package:ffmpeg_kit_flutter/src/ffmpeg_kit_flutter_initializer.dart:313
E/flutter ( 2236): <asynchronous suspension>
E/flutter ( 2236): #2      FFmpegKitInitializer.initialize
package:ffmpeg_kit_flutter/src/ffmpeg_kit_flutter_initializer.dart:54
E/flutter ( 2236): <asynchronous suspension>
E/flutter ( 2236): #3      FFmpegKitConfig.init
package:ffmpeg_kit_flutter/ffmpeg_kit_config.dart:50
E/flutter ( 2236): <asynchronous suspension>
E/flutter ( 2236): #4      FFmpegKitConfig.registerNewFFmpegPipe
package:ffmpeg_kit_flutter/ffmpeg_kit_config.dart:136
E/flutter ( 2236): <asynchronous suspension>
E/flutter ( 2236):
Lost connection to device.
Exited

tanersener · 2022-06-17T08:39:49Z

You have the same stack trace as the isolates issue. It seems like either an isolate or another background thread-like entity is created. And that entity is trying to call FFmpegKit API methods.

orenagiv · 2022-06-17T20:59:33Z

Thanks @tanersener

I wonder why it works on iOS and not on Android.

Anyway, I'm investigating.

Will keep you posted.

orenagiv · 2022-06-18T21:19:39Z

Hey @tanersener

Quick update:
I've managed to temporarily workaround the issue, by manually changing the order of the Flutter plugins registration in app/java/io.flutter.plugins/GeneratedPluginRegistrant.java.
If the first one is the ffmpeg-kit - then it works, and I no longer get the error above.

Example of the GeneratedPluginRegistrant.java file after placing the ffmpeg-kit to be there first one:

package io.flutter.plugins;

import androidx.annotation.Keep;
import androidx.annotation.NonNull;
import io.flutter.Log;

import io.flutter.embedding.engine.FlutterEngine;

/**
 * Generated file. Do not edit.
 * This file is generated by the Flutter tool based on the
 * plugins that support the Android platform.
 */
@Keep
public final class GeneratedPluginRegistrant {
  private static final String TAG = "GeneratedPluginRegistrant";
  public static void registerWith(@NonNull FlutterEngine flutterEngine) {
    try {
      flutterEngine.getPlugins().add(new com.arthenica.ffmpegkit.flutter.FFmpegKitFlutterPlugin());
    } catch(Exception e) {
      Log.e(TAG, "Error registering plugin ffmpeg_kit_flutter, com.arthenica.ffmpegkit.flutter.FFmpegKitFlutterPlugin", e);
    }
    try {
      flutterEngine.getPlugins().add(new software.solid.fluttervlcplayer.FlutterVlcPlayerPlugin());
    } catch(Exception e) {
      Log.e(TAG, "Error registering plugin flutter_vlc_player, software.solid.fluttervlcplayer.FlutterVlcPlayerPlugin", e);
    }
    try {
      flutterEngine.getPlugins().add(new cloud.dragonx.plugin.flutter.dji.DjiPlugin());
    } catch(Exception e) {
      Log.e(TAG, "Error registering plugin dji, cloud.dragonx.plugin.flutter.dji.DjiPlugin", e);
    }
  }
}

Still investigating...

orenagiv · 2022-06-27T17:15:39Z

Quick update:
Couldn't find the root cause.
For now - I'm using the above workaround (by placing manually changing the order of the plugins).

orenagiv · 2022-07-02T16:30:42Z

Hey @tanersener
I don't have any further insights about this one.
The change of plugin sequence as described in my previous comment is the workaround I'm using.

From my perspective you can close the issue.

Thanks 🙏

CodeWithOz · 2022-08-08T13:22:11Z

@orenagiv when I try this the order gets reverted once I do a new build, and the problem doesn't go away. Was there a particular way you made the change that caused it to persist?

orenagiv · 2022-08-08T17:54:27Z

Hey @CodeWithOz,
I've recently updated my pubspec.yaml to use the full_gpl version, and I think it might have resolved the issue:

ffmpeg_kit_flutter_full_gpl: ^4.5.1

I'm not sure, as I haven't reverted and double checked yet.
But please do, and let me know if it made any difference.

CodeWithOz · 2022-08-08T18:22:14Z

I was already using that actually, but with the version specified as 4.5.1-LTS rather than ^4.5.1 as you have it. I tried what you have and it didn't fix the problem 😭 .

orenagiv · 2022-08-08T20:01:40Z

Hey @CodeWithOz,

Please edit the sequence of plugins as I described in one of my previous comments, and then run the build from Android Studio.

Let me know if it works.

Then, build again via Flutter, and let me know if it is still successful.

CodeWithOz · 2022-08-09T09:08:50Z

@orenagiv I tried using Android Studio and the same thing happened, the order was reset after I ran the build and the problem didn't go away. 😢

orenagiv · 2022-08-09T17:14:06Z

Hey @CodeWithOz
That's probably because you used Android Studio with the Flutter framework.

Try to open the Android workspace on its own - as a pure native Android project.
And then compile it from there.

Let me know how it goes :)

BrindaRathodB · 2023-01-02T09:04:18Z

Why this issue has been closed, I got the same issue on an android device kindly reopen it

BrindaRathodB · 2023-01-02T09:25:02Z

@orenagiv @CodeWithOz have the above issue is fixed? because I did try above solutions bt it didn’t work

CodeWithOz · 2023-01-02T14:47:09Z

If I recall correctly we ended up not using ffmpeg in the app as a result of this issue. Moved the processing to an edge server.

On Mon, Jan 2, 2023 at 10:25 AM BrindaRathodB ***@***.***> wrote: @orenagiv <https://github.com/orenagiv> @CodeWithOz <https://github.com/CodeWithOz> have the above issue is fixed? because I did try above solutions bt it didn’t work — Reply to this email directly, view it on GitHub <#461 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGZULIWVRJXWZK3NX4RQUBTWQKNHTANCNFSM5Y4SZPDA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

-- Sincerely, Uche Ozoemena Sent from Gmail Mobile

BrindaRathodB · 2023-01-02T15:22:11Z

Okay, thanks for the response @orenagiv

zhubinsheng · 2023-02-13T09:32:15Z

how to fix

zhubinsheng · 2023-02-21T05:33:42Z

loss implementation 'com.arthenica:smart-exception-java:0.2.1'
open android and start ,can see logcat error

Esrko2905 · 2023-02-21T06:13:39Z

@zhubinsheng did you find the solution and cause of the issue?

zhubinsheng · 2023-02-21T06:24:25Z

@zhubinsheng您找到问题的解决方案和原因了吗？

yes。 need implementation 'com.arthenica:smart-exception-java:0.2.1'

Esrko2905 · 2023-02-21T09:44:34Z

how to do that? is there any documentation available?

vietnguyen312 · 2023-03-13T06:51:30Z

I encountered a similar issue while using FFmpeg in an Android background service. The problem may be due to the fact that the init() function in FFmpegKitFlutterPlugin.java is only called in onAttachedToActivity(), which is not available in a background service. To fix this, I suggest moving the init() function to onAttachedToEngine().

tanersener added flutter Affect flutter platform needs-analysis We don't know that this is. It must be investigated further v4.5.1 Affects v4.5.1 release labels Jun 17, 2022

orenagiv mentioned this issue Jul 2, 2022

Update on Video/Image Streaming/Downloading DragonX-cloud/dji_flutter_plugin#4

Closed

tanersener closed this as completed Jul 11, 2022

Holofox mentioned this issue Apr 25, 2023

[Bug Report] Unable to build iOS & package:flutter_ffmpeg_kit compatibility on Android media-kit/media-kit#159

Closed

deckerst mentioned this issue Aug 5, 2023

Init from background #792

Closed

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Flutter | On Android only - Unhandled Exception: MissingPluginException (No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit) #461

Flutter | On Android only - Unhandled Exception: MissingPluginException (No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit) #461

orenagiv commented Jun 15, 2022 •

edited

tanersener commented Jun 16, 2022

orenagiv commented Jun 16, 2022 •

edited

tanersener commented Jun 17, 2022

orenagiv commented Jun 17, 2022

orenagiv commented Jun 18, 2022 •

edited

orenagiv commented Jun 27, 2022

orenagiv commented Jul 2, 2022

CodeWithOz commented Aug 8, 2022

orenagiv commented Aug 8, 2022

CodeWithOz commented Aug 8, 2022

orenagiv commented Aug 8, 2022

CodeWithOz commented Aug 9, 2022

orenagiv commented Aug 9, 2022

BrindaRathodB commented Jan 2, 2023

BrindaRathodB commented Jan 2, 2023

CodeWithOz commented Jan 2, 2023 via email

BrindaRathodB commented Jan 2, 2023

zhubinsheng commented Feb 13, 2023

zhubinsheng commented Feb 21, 2023

Esrko2905 commented Feb 21, 2023

zhubinsheng commented Feb 21, 2023

Esrko2905 commented Feb 21, 2023

vietnguyen312 commented Mar 13, 2023

Flutter | On Android only - Unhandled Exception: MissingPluginException (No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit) #461

Flutter | On Android only - Unhandled Exception: MissingPluginException (No implementation found for method getLogLevel on channel flutter.arthenica.com/ffmpeg_kit) #461

Comments

orenagiv commented Jun 15, 2022 • edited

tanersener commented Jun 16, 2022

orenagiv commented Jun 16, 2022 • edited

tanersener commented Jun 17, 2022

orenagiv commented Jun 17, 2022

orenagiv commented Jun 18, 2022 • edited

orenagiv commented Jun 27, 2022

orenagiv commented Jul 2, 2022

CodeWithOz commented Aug 8, 2022

orenagiv commented Aug 8, 2022

CodeWithOz commented Aug 8, 2022

orenagiv commented Aug 8, 2022

CodeWithOz commented Aug 9, 2022

orenagiv commented Aug 9, 2022

BrindaRathodB commented Jan 2, 2023

BrindaRathodB commented Jan 2, 2023

CodeWithOz commented Jan 2, 2023 via email

BrindaRathodB commented Jan 2, 2023

zhubinsheng commented Feb 13, 2023

zhubinsheng commented Feb 21, 2023

Esrko2905 commented Feb 21, 2023

zhubinsheng commented Feb 21, 2023

Esrko2905 commented Feb 21, 2023

vietnguyen312 commented Mar 13, 2023

orenagiv commented Jun 15, 2022 •

edited

orenagiv commented Jun 16, 2022 •

edited

orenagiv commented Jun 18, 2022 •

edited