title: Error: Not found: 'dart:ui' import 'dart:ui' - Flutter
body: <p>I've cloned a certain repository from Github to my VSCode Editor but this is the output every time I try running the code.</p>
  <p>[Running] dart &quot;/home/linusanari_/Documents/Flutterprojects/hopOn/lib/main.dart&quot;
  lib/main.dart: Warning: Interpreting this as package URI, 'package:vehicle_sharing_app/main.dart'.
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/action_sheet.dart:5:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show ImageFilter;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/bottom_tab_bar.dart:5:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show ImageFilter;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/colors.dart:5:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show Color, Brightness;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/context_menu.dart:6:8: Error: Not found: 'dart:ui'
  import 'dart:ui' as ui;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/dialog.dart:6:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show ImageFilter;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/nav_bar.dart:6:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show ImageFilter;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/route.dart:6:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show lerpDouble, ImageFilter;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/slider.dart:6:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show lerpDouble;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/switch.dart:5:8: Error: Not found: 'dart:ui'
  import 'dart:ui' show lerpDouble;
  ^
  ../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/text_field.dart:5:8: Error: Not found: 'dart:ui'
  import 'dart:ui' as ui show BoxHeightStyle, BoxWidthStyle;
  ^</p>
  <p>[Done] exited with code=254 in 15.987 seconds</p>
  <p>Any insight/help will be much appreciated.</p>