error: incompatible types: PluginRegistry cannot be converted to FlutterEngine GeneratedPluginRegistrant.registerWith(registry); code example

Example 1: PluginRegistry cannot be converted to FlutterEngine GeneratedPluginRegistrant.registerWith(registry)

import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;
//replace GeneratedPluginRegistrant.registerWith(registry); with below
FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));

Example 2: generatedpluginregistrant.registerwith(registry) error

FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));