From 44f6a536d24447a05d1ac169254a8e4fcf561d31 Mon Sep 17 00:00:00 2001
From: Yi Xiao <54782454+YIXIAO0@users.noreply.github.com>
Date: Fri, 11 Oct 2024 19:17:22 +0800
Subject: [PATCH] fix: reference issue in external knowledge api (#9240)

---
 web/app/components/base/chat/chat/citation/popup.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/app/components/base/chat/chat/citation/popup.tsx b/web/app/components/base/chat/chat/citation/popup.tsx
index b61bf623fe..9b98329e70 100644
--- a/web/app/components/base/chat/chat/citation/popup.tsx
+++ b/web/app/components/base/chat/chat/citation/popup.tsx
@@ -100,7 +100,7 @@ const Popup: FC<PopupProps> = ({
                             />
                             <Tooltip
                               text={t('common.chat.citation.vectorHash')}
-                              data={source.index_node_hash.substring(0, 7)}
+                              data={source.index_node_hash?.substring(0, 7)}
                               icon={<BezierCurve03 className='mr-1 w-3 h-3' />}
                             />
                             {