From af37e266409d5f822fcc57029fca71a7b09309cd Mon Sep 17 00:00:00 2001
From: katherinehhh <shunai.tang@hand-china.com>
Date: Wed, 14 Jun 2023 10:37:15 +0800
Subject: [PATCH] fix: enable tab and deleting tab page  will result in an
 error (#2045)

---
 packages/core/client/src/schema-component/antd/page/Page.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/client/src/schema-component/antd/page/Page.tsx b/packages/core/client/src/schema-component/antd/page/Page.tsx
index 92613373f..96efec3bb 100644
--- a/packages/core/client/src/schema-component/antd/page/Page.tsx
+++ b/packages/core/client/src/schema-component/antd/page/Page.tsx
@@ -139,7 +139,7 @@ export const Page = (props) => {
   const [loading, setLoading] = useState(false);
   const [activeKey, setActiveKey] = useState(() => {
     // @ts-ignore
-    return location?.query?.tab || Object.keys(fieldSchema.properties).shift();
+    return location?.query?.tab || Object.keys(fieldSchema.properties || {}).shift();
   });
 
   const [height, setHeight] = useState(0);