Failed to handle method call on local notification

Looks like you are initializing plugin without or with wrong app_icon;

In your initState you should initialize with CORRECT ICON NAME:

@override void initState() {   super.initState();   FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();   var initializationSettingsAndroid = AndroidInitializationSettings('app_icon'); // <- default icon name is @mipmap/ic_launcher   var initializationSettingsIOS = IOSInitializationSettings(onDidReceiveLocalNotification: onDidReceiveLocalNotification);   var initializationSettings = InitializationSettings(initializationSettingsAndroid, initializationSettingsIOS);   flutterLocalNotificationsPlugin.initialize(initializationSettings, onSelectNotification: onSelectNotification); }

https://github.com/MaikuB/flutter_local_notifications#getting-started <- how to initialize

How to change the application launcher icon on Flutter? <- adding app icons

I solve the problem by indicating the file type when initializing android setting as follows:

var initializationSettingsAndroid = AndroidInitializationSettings('app_icon.png');

Alternatively, u can set the icon as default like this:

var initializationSettingsAndroid = AndroidInitializationSettings('mipmap/ic_launcher');

Hope this helps.

For flutter local notifications, first you must add icon in android res/drawable folder. Then you should submit this icon name in AndroidInitializationSettings class otherwise you will get error.

@overridevoid initState() {super.initState();var androidSettings = AndroidInitializationSettings(‘app_icon’);var iOSSettings = IOSInitializationSettings(    requestSoundPermission: false,    requestBadgePermission: false,    requestAlertPermission: false,);var initSetttings = InitializationSettings(androidSettings, iOSSettings);flutterLocalNotificationsPlugin.initialize(initSetttings, onSelectNotification: onClickNotification);}