List ConnectivityResult

E/flutter ( 2631): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: type 'List' is not a subtype of type 'ConnectivityResult' in type cast E/flutter ( 2631): #0
_MyAppState._checkInitialConnection (package:mark_v3/main.dart:126:51) E/flutter ( 2631):

Future<void> _checkInitialConnection() async {
  final ConnectivityResult result =
      (await _connectivity.checkConnectivity()) as ConnectivityResult;
  _updateConnectionStatus([result]);
}

i think you are using the old approach in which

await _connectivity.checkConnectivity()

returned a ConnectivityResult now it returns a list of connectivity results

  // Check the initial connection status
  Future<void> _checkConnection() async {

    // Since checkConnectivity() now returns a List<ConnectivityResult>
    List<ConnectivityResult> results = await _connectivity.checkConnectivity();

    // For simplicity, you can check the first result or handle all results
    if (results.isNotEmpty) {
      _updateConnectionStatus(results.first); // Use the first result for now
    }
  }

check the connectivity plus package here: pub.dev