diff --git a/Flutter/json_to_dart/lib/main_controller.dart b/Flutter/json_to_dart/lib/main_controller.dart
index ab3a1e9..831b0a7 100644
--- a/Flutter/json_to_dart/lib/main_controller.dart
+++ b/Flutter/json_to_dart/lib/main_controller.dart
@@ -85,6 +85,7 @@ class MainController extends GetxController {
       //   handleError(error, stackTrace);
       // });
       if (extendedObject == null) {
+        SmartDialog.dismiss();
         showAlertDialog(appLocalizations.illegalJson, Icons.error);
         return;
       }
diff --git a/Flutter/json_to_dart/pubspec.lock b/Flutter/json_to_dart/pubspec.lock
index 6581ec3..2d6f0f5 100644
--- a/Flutter/json_to_dart/pubspec.lock
+++ b/Flutter/json_to_dart/pubspec.lock
@@ -368,6 +368,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.3"
   meta:
     dependency: transitive
     description:
@@ -582,7 +589,7 @@ packages:
       name: test_api
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.4.3"
+    version: "0.4.8"
   time:
     dependency: transitive
     description: