[FIXED] flutter_background_geolocation not working in release mode


I set up everything without skipping a single point from this plugin. It’s working in all debug modes (Foreground, Background, Kill stat).

ERROR LOG: While killing the app in release mode

E/FlutterGeolocator(24131): Geolocator position updates stopped
D/FlutterGeolocator(24131): Stopping location service.
D/FlutterLocationService(24131): Unbinding from location service.
D/FlutterLocationService(24131): Destroying service.
E/flutter (24131): [ERROR:flutter/shell/common/shell.cc(93)] Dart Error: Dart_LookupLibrary: library 'package:flutter_background_geolocation/flutter_background_geolocation.dart' not found.
E/flutter (24131): [ERROR:flutter/runtime/dart_isolate.cc(668)] Could not resolve main entrypoint function.
E/flutter (24131): [ERROR:flutter/runtime/dart_isolate.cc(167)] Could not run the run main Dart entrypoint.
E/flutter (24131): [ERROR:flutter/runtime/runtime_controller.cc(385)] Could not create root isolate.
E/flutter (24131): [ERROR:flutter/shell/common/shell.cc(604)] Could not launch engine with configuration.

Permission in Android Manifest

 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>
 <uses-permission android:name="android.permission.INTERNET"/>
 <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>


This seems to be an issue across Flutter 3.3 which is breaking plugins running in isolates.

You need to annotate top level or static functions running in isolates with

Like this

void locationCallback() {


Answered By – AndroidCoder

Answer Checked By – David Goodson (FixeMe Volunteer)

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