diff --git a/examples/sdk-placeholder.html b/examples/sdk-placeholder.html
index 8a193f925..19e583a03 100644
--- a/examples/sdk-placeholder.html
+++ b/examples/sdk-placeholder.html
@@ -1,18 +1,16 @@
 <!DOCTYPE html>
 <html lang="zh">
+
   <head>
     <link rel="stylesheet" href="@fortawesome/fontawesome-free/css/all.css" />
-    <link
-      rel="stylesheet"
-      href="@fortawesome/fontawesome-free/css/v4-shims.css"
-    />
-    <link rel="stylesheet" title="ang" href="amis-ui/scss/helper.scss" />
+    <link rel="stylesheet" href="@fortawesome/fontawesome-free/css/v4-shims.css" />
     <!--DEPENDENCIES_INJECT_PLACEHOLDER-->
     <!--STYLE_PLACEHOLDER-->
     <link rel="stylesheet" title="ang" href="amis-ui/scss/themes/ang.scss" />
     <link rel="stylesheet" title="cxd" href="amis-ui/scss/themes/cxd.scss" />
     <link rel="stylesheet" title="dark" href="amis-ui/scss/themes/dark.scss" />
     <link rel="stylesheet" title="antd" href="amis-ui/scss/themes/antd.scss" />
+    <link rel="stylesheet" title="helper" href="amis-ui/scss/helper.scss" />
   </head>
 
   <body>
@@ -31,4 +29,4 @@
       })(window);
     </script>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/packages/amis-editor-core/src/manager.ts b/packages/amis-editor-core/src/manager.ts
index d2219d4fc..11dc04a7e 100644
--- a/packages/amis-editor-core/src/manager.ts
+++ b/packages/amis-editor-core/src/manager.ts
@@ -335,10 +335,13 @@ export class EditorManager {
       | PluginClass
       | [PluginClass, Record<string, any> | (() => Record<string, any>)]
     >
-  ) {
+  ): (
+    | PluginClass
+    | [PluginClass, Record<string, any> | (() => Record<string, any>)]
+  )[] {
     return (
       plugins?.map(klass => {
-        let options: any;
+        let options;
         if (Array.isArray(klass)) {
           options = klass[1];
           klass = klass[0];
