diff --git a/src/entities/ExtraFile.ts b/src/entities/ExtraFile.ts
index cc8772846..9f8fc350e 100644
--- a/src/entities/ExtraFile.ts
+++ b/src/entities/ExtraFile.ts
@@ -1,7 +1,7 @@
 import { String, Int, Text, Image } from 'oak-domain/lib/types/DataType';
-import { EntityShape } from 'oak-domain/lib/types/Entity';
+import { FileCarrierEntityShape } from 'oak-domain/lib/types/Entity';
 
-export interface Schema extends EntityShape {
+export interface Schema extends FileCarrierEntityShape {
     origin: 'qiniu' | 'unknown';
     type: 'image' | 'pdf' | 'video' | 'audio' | 'file';
     bucket: String<16>;
diff --git a/src/typings/polyfill.d.ts b/src/typings/polyfill.d.ts
index be3b732b3..cc56389c7 100644
--- a/src/typings/polyfill.d.ts
+++ b/src/typings/polyfill.d.ts
@@ -1,5 +1,5 @@
 import { MakeOakComponent, MakeOakPage } from 'oak-frontend-base';
-import { EntityDict } from 'oak-app-domain/EntityDict';
+import { EntityDict } from 'oak-app-domain';
 import { GeneralRuntimeContext } from '../RuntimeContext';
 import aspectDict from '../aspects';
 import { initialize } from '../features';
diff --git a/tsconfig.json b/tsconfig.json
index 36ebcc2f7..991a93201 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -77,7 +77,7 @@
     "node_modules",
     "**/*.spec.ts",
     "test",
-    "scripts",
-    "wechatMp"
+    "scripts",/* 
+    "wechatMp" */
   ]
 }
\ No newline at end of file
diff --git a/wechatMp/components/extraFile/upsert/index.ts b/wechatMp/components/extraFile/upsert/index.ts
new file mode 100644
index 000000000..c7c487162
--- /dev/null
+++ b/wechatMp/components/extraFile/upsert/index.ts
@@ -0,0 +1,17 @@
+import { WechatMpFileCarrier } from 'oak-frontend-base';
+OakComponent({
+    entity: 'extraFile',
+    formData: async (_rows, _features, _fileCarrier) => {
+        return {
+            name: 1,
+        }
+    }
+}, {
+    methods: {
+        async onFilePicked() {
+            const fileCarrier = new WechatMpFileCarrier();
+    
+            this.setFileCarrier(fileCarrier);
+        }
+    }
+});
\ No newline at end of file