errno

Defines system error code constants for the OSs running the Dart platform.

With these numeric codes, the OSError.errorCode property usually specifies the problem that occurred.

OS	Class
Android, Linux	LinuxErrors
iOS, macOS	DarwinErrors
Windows	WindowsErrors

Example

import 'dart:io';

import 'package:errno/errno.dart';

void main() {

  try {

    var lst = Directory("My Documents").listSync();
    print(lst);

  } on FileSystemException catch (exc) {

    if (exc.osError?.errorCode == WindowsErrors.pathNotFound) {
      
      print("The directory does not exist.");

    } else {
      rethrow;
    }
  }
}