diff --git a/src/pages/Batch/index.tsx b/src/pages/Batch/index.tsx
index 10b1bae..10095f3 100644
--- a/src/pages/Batch/index.tsx
+++ b/src/pages/Batch/index.tsx
@@ -10,7 +10,6 @@ import {
     DatePicker,
     Select,
     Space,
-    Tag,
     Upload,
     Progress,
 } from 'antd';
@@ -23,7 +22,6 @@ import {
 } from '@ant-design/icons';
 import { ProTable } from '@ant-design/pro-components';
 import type { ProColumns, ActionType } from '@ant-design/pro-components';
-import dayjs from 'dayjs';
 import {
     getBatches,
     createBatch,
@@ -36,7 +34,7 @@ import type { DeviceType } from '../../api/deviceType';
 
 const BatchPage: React.FC = () => {
     const navigate = useNavigate();
-    const actionRef = useRef<ActionType>();
+    const actionRef = useRef<ActionType>(null);
     const [modalVisible, setModalVisible] = useState(false);
     const [importModalVisible, setImportModalVisible] = useState(false);
     const [selectedBatchId, setSelectedBatchId] = useState<number | null>(null);