diff --git a/.github/workflows/flutter_analyze.yaml b/.github/workflows/flutter_analyze.yaml
index 2fc86b5..5dceb2e 100644
--- a/.github/workflows/flutter_analyze.yaml
+++ b/.github/workflows/flutter_analyze.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v1
+      - uses: subosito/flutter-action@v2
         with:
           channel: 'beta'
       - run: flutter pub get
diff --git a/.github/workflows/flutter_check_style.yaml b/.github/workflows/flutter_check_style.yaml
index 74c5624..eca3005 100644
--- a/.github/workflows/flutter_check_style.yaml
+++ b/.github/workflows/flutter_check_style.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v1
+      - uses: subosito/flutter-action@v2
         with:
           channel: 'beta'
       - run: flutter pub get
diff --git a/.github/workflows/release_windows.yaml b/.github/workflows/release_windows.yaml
index 1f901df..c548ff3 100644
--- a/.github/workflows/release_windows.yaml
+++ b/.github/workflows/release_windows.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v1
+      - uses: subosito/flutter-action@v2
         with:
           channel: beta
       - run: flutter config --enable-windows-desktop
diff --git a/lib/main.dart b/lib/main.dart
index 5db2ab8..56f53a8 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -145,6 +145,7 @@ class MyApp extends StatelessWidget {
           final args = settings.arguments as SqlViewModel;
           return RouteGen.sqlExecute(args);
         }
+        throw UnimplementedError();
       },
     );
   }
diff --git a/lib/open/open_api_pulsar.dart b/lib/open/open_api_pulsar.dart
index 51dd5ad..85fcdde 100644
--- a/lib/open/open_api_pulsar.dart
+++ b/lib/open/open_api_pulsar.dart
@@ -1,8 +1,8 @@
 import 'package:paas_dashboard_flutter/api/pulsar/pulsar_partitioned_topic_api.dart';
 import 'package:paas_dashboard_flutter/persistent/persistent.dart';
 
-class PulsarService {
-  Future<int> partitionTopicNumber(String name, String tenant, String namespace) async {
+class OpenApiPulsar {
+  Future<int> partitionTopicCount(String name, String tenant, String namespace) async {
     var pulsarInstance = await Persistent.pulsarInstance(name);
     if (pulsarInstance == null) {
       throw ArgumentError("pulsar instance not exist");