overlayEntry should not be null

[stoppiNeobiz]

Describe the bug
I receive an error from flutter
[VERBOSE-2:ui_dart_state.cc(177)] Unhandled Exception: 'package:flutter_easyloading/src/easy_loading.dart': Failed assertion: line 428 pos 7: 'overlayEntry != null': overlayEntry should not be null

Flutter/Dart info
please run flutter doctor then put it here.

Screenshots
If applicable, add screenshots to help explain your problem.

[github-actions]

Thanks for taking the time to open an issue. I will have a look and answer as soon as possible.

[nslogx]

@stoppiNeobiz

Initialize EasyLoading in your MaterialApp

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter EasyLoading',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter EasyLoading'),
      builder: EasyLoading.init(),
    );
  }
}

[BartusZak]

@kokohuang how can I do that with more advanced builder configuration?

 @override
  Widget build(BuildContext context) {
    return MaterialApp.router(
      debugShowCheckedModeBanner: false,
      key: _navigatorKey,
      title: 'Title',
      theme: ThemeData(
        primarySwatch: Colors.grey,
        appBarTheme: AppBarTheme(
          color: Colors.white,
        ),
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      builder: (context, child) {
        ErrorWidget.builder = (FlutterErrorDetails errorDetails) {
          return buildError(context, errorDetails);
        };

        EasyLoading.init(); // does not work

        // ignore: close_sinks
        final ApplicationBloc _applicationBloc =
            BlocProvider.of<ApplicationBloc>(context);

        return Container(
          child: BlocProvider(
            create: (_) => _applicationBloc,
            child: BlocListener<ApplicationBloc, ApplicationState>(
              listener: _applicationBlocListener,
              child: BlocBuilder<ApplicationBloc, ApplicationState>(
                builder: (context, state) {
                  if (state is InitialApplicationState ||
                      state is ApplicationLoadingState) {
                    return LoadingWidget();
                  } else if (state is ApplicationLoadedState) {
                    return child;
                  } else {
                    return Text("Application load error. Try again.");
                  }
                },
              ),
            ),
          ),
        );
      },
      localizationsDelegates: [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: const <Locale>[
        const Locale('en', 'US'),
        const Locale('pl', 'PL'),
      ],
      routerDelegate: _appRouter.delegate(),
      routeInformationParser: _appRouter.defaultRouteParser(),
    );
  }

[nslogx]

EasyLoading.init()

@kokohuang how can I do that with more advanced builder configuration?

 @override
  Widget build(BuildContext context) {
    return MaterialApp.router(
      debugShowCheckedModeBanner: false,
      key: _navigatorKey,
      title: 'Title',
      theme: ThemeData(
        primarySwatch: Colors.grey,
        appBarTheme: AppBarTheme(
          color: Colors.white,
        ),
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      builder: (context, child) {
        ErrorWidget.builder = (FlutterErrorDetails errorDetails) {
          return buildError(context, errorDetails);
        };

        EasyLoading.init(); // does not work

        // ignore: close_sinks
        final ApplicationBloc _applicationBloc =
            BlocProvider.of<ApplicationBloc>(context);

        return Container(
          child: BlocProvider(
            create: (_) => _applicationBloc,
            child: BlocListener<ApplicationBloc, ApplicationState>(
              listener: _applicationBlocListener,
              child: BlocBuilder<ApplicationBloc, ApplicationState>(
                builder: (context, state) {
                  if (state is InitialApplicationState ||
                      state is ApplicationLoadingState) {
                    return LoadingWidget();
                  } else if (state is ApplicationLoadedState) {
                    return child;
                  } else {
                    return Text("Application load error. Try again.");
                  }
                },
              ),
            ),
          ),
        );
      },
      localizationsDelegates: [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: const <Locale>[
        const Locale('en', 'US'),
        const Locale('pl', 'PL'),
      ],
      routerDelegate: _appRouter.delegate(),
      routeInformationParser: _appRouter.defaultRouteParser(),
    );
  }

#83 (comment)

[kyadakrupali08]

I was got this errer Please help me ASAP

'package:flutter_easyloading/src/easy_loading.dart': Failed assertion: line 298 pos 7: '_getInstance().overlayEntry != null': overlayEntry should not be null

This is my Flutter Doctor details

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, 1.25.0-8.2.pre, on Microsoft Windows [Version 10.0.14393], locale en-IN)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[√] Android Studio (version 4.1.0)
[√] Connected device (1 available)

[nslogx]

@kyadakrupali08 you shuld init EasyLoading in you MaterialApp

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter EasyLoading',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter EasyLoading'),
      builder: EasyLoading.init(),
    );
  }
}