lib/core/error/rest_service_exception.dart

@@ -5,8 +5,8 @@ class RestServiceException extends ServiceException {
   final int statusCode;
   final dynamic responseBody;
 
-  RestServiceException(this.statusCode, {this.responseBody, super.message = null})
-      : super(code: ErrorCode.restError);
+  RestServiceException(this.statusCode, {this.responseBody, String? message})
+      : super(code: ErrorCode.restError, message: message);
 
   @override
   String toString() {

lib/core/manager/dialog_manager.dart

@@ -8,7 +8,7 @@ import '../services/dialog_service.dart';
 class DialogManager extends StatefulWidget {
   final Widget? child;
 
-  const DialogManager({super.key, this.child});
+  const DialogManager({Key? key, this.child}) : super(key: key);
 
   @override
   _DialogManagerState createState() => _DialogManagerState();

lib/core/manager/lifecycle_manager.dart

@@ -11,7 +11,7 @@ import '../util/logger.dart';
 class LifeCycleManager extends StatefulWidget {
   final Widget? child;
 
-  const LifeCycleManager({super.key, this.child});
+  const LifeCycleManager({Key? key, this.child}) : super(key: key);
 
   @override
   _LifeCycleManagerState createState() => _LifeCycleManagerState();

lib/ui/widgets/my_appbar.dart

@@ -7,11 +7,12 @@ class MyAppBar extends AppBar {
   static final List<Widget> aboutDisabledWidgets = [];
 
   MyAppBar(
-      {super.key,
+      {Key? key,
       required Widget title,
       List<Widget>? actionWidgets,
       bool enableAbout = true})
       : super(
+            key: key,
             title: Row(children: <Widget>[title]),
             actions: _renderIconButtons(actionWidgets, enableAbout));
 

pubspec.lock

@@ -274,10 +274,10 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: e2a421b7e59244faef694ba7b30562e489c2b489866e505074eb005cd7060db7
+      sha256: a25a15ebbdfc33ab1cd26c63a6ee519df92338a9c10f122adda92938253bef04
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "2.0.3"
   flutter_localizations:
     dependency: "direct main"
     description: flutter
@@ -425,10 +425,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      sha256: "0a217c6c989d21039f1498c3ed9f3ed71b354e69873f13a8dfc3c9fe76f1b452"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "2.1.1"
   logger:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -50,7 +50,7 @@ dev_dependencies:
     build_runner: 2.4.6
     built_value_generator: 8.7.0
     json_serializable: 6.7.1
-    flutter_lints: 3.0.1
+    flutter_lints: 2.0.3
 
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec