diff --git a/flutter/lib/common.dart b/flutter/lib/common.dart
index 8a2792a2b..752de582c 100644
--- a/flutter/lib/common.dart
+++ b/flutter/lib/common.dart
@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 import 'dart:typed_data';
-import 'dart:ui';
 
 import 'package:back_button_interceptor/back_button_interceptor.dart';
 import 'package:desktop_multi_window/desktop_multi_window.dart';
diff --git a/flutter/lib/desktop/pages/desktop_setting_page.dart b/flutter/lib/desktop/pages/desktop_setting_page.dart
index 709d4deda..b063c3c15 100644
--- a/flutter/lib/desktop/pages/desktop_setting_page.dart
+++ b/flutter/lib/desktop/pages/desktop_setting_page.dart
@@ -5,7 +5,6 @@ import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_hbb/common.dart';
-import 'package:flutter_hbb/consts.dart';
 import 'package:flutter_hbb/desktop/pages/desktop_home_page.dart';
 import 'package:flutter_hbb/desktop/pages/desktop_tab_page.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
diff --git a/flutter/lib/desktop/widgets/tabbar_widget.dart b/flutter/lib/desktop/widgets/tabbar_widget.dart
index 825ed4dfe..0b28bca41 100644
--- a/flutter/lib/desktop/widgets/tabbar_widget.dart
+++ b/flutter/lib/desktop/widgets/tabbar_widget.dart
@@ -8,7 +8,6 @@ import 'package:flutter/material.dart' hide TabBarTheme;
 import 'package:flutter_hbb/common.dart';
 import 'package:flutter_hbb/consts.dart';
 import 'package:flutter_hbb/main.dart';
-import 'package:flutter_hbb/common/shared_state.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
 import 'package:flutter_hbb/models/state_model.dart';
 import 'package:get/get.dart';
diff --git a/flutter/lib/main.dart b/flutter/lib/main.dart
index 8b567e3e2..df314396f 100644
--- a/flutter/lib/main.dart
+++ b/flutter/lib/main.dart
@@ -1,5 +1,4 @@
 import 'dart:convert';
-import 'dart:io';
 
 import 'package:desktop_multi_window/desktop_multi_window.dart';
 import 'package:flutter/material.dart';