When running getserver, the server can't connect to mongodb?

[rambozzang]

When running getserver, the server can't connect to mongodb?

use mongo_dart: ^0.7.0+2

error: Error: Not found: 'dart:ui'

lib/main.dart: Warning: Interpreting this as package URI, 'package:mon_server/main.dart'.
../../flutter/packages/flutter/lib/src/foundation/basic_types.dart:9:1: Error: Not found: 'dart:ui'
export 'dart:ui' show VoidCallback;
^
../../flutter/packages/flutter/lib/src/foundation/binding.dart:8:8: Error: Not found: 'dart:ui'
import 'dart:ui' as ui show SingletonFlutterWindow, Brightness, PlatformDispatcher, window;
^
../../flutter/packages/flutter/lib/src/foundation/debug.dart:5:8: Error: Not found: 'dart:ui'
import 'dart:ui' as ui show Brightness;
^
../../flutter/packages/flutter/lib/src/foundation/key.dart:5:8: Error: Not found: 'dart:ui'
import 'dart:ui' show hashValues;
^
../../flutter/packages/flutter/lib/src/foundation/stack_frame.dart:5:8: Error: Not found: 'dart:ui'
import 'dart:ui' show hashValues;
^
../../flutter/packages/flutter/lib/src/foundation/binding.dart:100:3: Error: Type 'ui.SingletonFlutterWindow' not found.
ui.SingletonFlutterWindow get window => ui.window;
^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/foundation/binding.dart:121:3: Error: Type 'ui.PlatformDispatcher' not found.
ui.PlatformDispatcher get platformDispatcher => ui.PlatformDispatcher.instance;
^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/foundation/change_notifier.dart:68:20: Error: Type 'VoidCallback' not found.
void addListener(VoidCallback listener);
^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/foundation/change_notifier.dart:72:23: Error: Type 'VoidCallback' not found.
void removeListener(VoidCallback listener);
^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/foundation/change_notifier.dart:106:8: Error: Type 'VoidCallback' not found.
List<VoidCallback?> _listeners = List<VoidCallback?>.filled(0, null);
^^^^^^^^^^^^

[jonataslaw]

Remove these lines from your pubspec

  flutter:
    sdk: flutter

[rambozzang]

thank you