fix bug

example/pubspec.lock

@@ -79,11 +79,9 @@ packages:
   flutter_aes_ecb_pkcs5:
     dependency: transitive
     description:
-      path: "."
-      ref: master
-      resolved-ref: "5af982b8bc604258462efc808f9ac3d3ecfc7062"
-      url: "[email protected]:polkawallet-io/flutter_aes_ecb_pkcs5.git"
-    source: git
+      path: "../../flutter_aes_ecb_pkcs5"
+      relative: true
+    source: path
     version: "0.1.1"
   flutter_inappwebview:
     dependency: transitive

lib/service/staking.dart

@@ -52,9 +52,8 @@ class ServiceStaking {
   }
 
   Future<int?> getSlashingSpans(String stashId) async {
-    final int? spans = await (serviceRoot.webView!
-            .evalJavascript('staking.getSlashingSpans(api, "$stashId")')
-        as FutureOr<int?>);
+    final dynamic spans = await serviceRoot.webView!
+        .evalJavascript('staking.getSlashingSpans(api, "$stashId")');
     return spans;
   }
 }

pubspec.lock

@@ -205,11 +205,9 @@ packages:
   flutter_aes_ecb_pkcs5:
     dependency: "direct main"
     description:
-      path: "."
-      ref: master
-      resolved-ref: "5af982b8bc604258462efc808f9ac3d3ecfc7062"
-      url: "[email protected]:polkawallet-io/flutter_aes_ecb_pkcs5.git"
-    source: git
+      path: "../flutter_aes_ecb_pkcs5"
+      relative: true
+    source: path
     version: "0.1.1"
   flutter_inappwebview:
     dependency: "direct main"

pubspec.yaml

@@ -17,9 +17,10 @@ dependencies:
   get_storage: ^2.0.3
   json_annotation: ^4.0.1
   flutter_aes_ecb_pkcs5: 
-    git:
-      url: https://github.com/polkawallet-io/flutter_aes_ecb_pkcs5.git
-      ref: master
+    path: ../flutter_aes_ecb_pkcs5
+    # git:
+    #   url: https://github.com/polkawallet-io/flutter_aes_ecb_pkcs5.git
+    #   ref: master
 
   convert: ^3.0.1
   mobx: ^2.0.4