Flutter try catch can't catch SocketException ( Exception has occurred. SocketException (SocketException: OS Error: No route to host, errno = 113)

Flutter App crashed after getting this exception

Exception has occurred.
SocketException (SocketException: OS Error: No route to host, errno = 113, address = 10.162.18.32, port = 60208)

THE same URL is accessible from the testing phone, Postman.
also tried with

try {

} on SocketException {

}

Still, Exception is not handled.

 
 Future<List<Post>> getPosts() async {
    final prefs = await SharedPreferences.getInstance();
    final key = 'token';
    print(prefs.get(key));
    final value = prefs.get(key) ?? 0;
    Map<String, String> headers = {
      "Accept": "application/json",
      "Authorization": "Bearer $value"
    };
    print("before res");
    var responseJson;
    try {
      print("ins try get url " + host + "posts");
      final response = await http.get(host + "posts",
          headers: headers);   //Exception on this line
      print("final try");
      responseJson = _response(response);
    } catch (e) {
      print(e);
      return null;
      //throw FetchDataException('No Internet connection');
    }
    // if (res.statusCode == 200) {
    List<dynamic> body = responseJson;

    List<Post> posts = body
        .map(
          (dynamic item) => Post.fromJson(item),
        )
        .toList();

    return posts;
    // } else {
    //   print('A network error occurred');
    //   //throw "Can't get posts.";
    // }
  }

flutter doctor

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.0.2, on Microsoft Windows [Version 10.0.18363.836], locale en-US)
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.1)
[√] Chrome - develop for the web
[√] Android Studio (version 4.1.0)
[√] VS Code (version 1.54.3)
[√] Connected device (2 available)

• No issues found!
PS C:\Users\nicalp\AndroidStudioProjects\vikasapp> flutter --version
Flutter 2.0.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 8962f6dc68 (11 days ago) • 2021-03-11 13:22:20 -0800
Engine • revision 5d8bf811b3

Screenshots

https://i.ibb.co/VVHV3Sr/image.png

https://i.ibb.co/GMRZZ21/image.png

The issue names getPosts and the await http.get(host + "posts") call but no repository file or test. Start by locating that method, reproduce the SocketException, and trace whether the failure occurs within the awaited call; done means the escaping path and expected handling are confirmed.