From bbb768efdbdb73f56c0d1c2ec882eb41347b1732 Mon Sep 17 00:00:00 2001
From: zeye <2295905420@qq.com>
Date: Wed, 15 Apr 2020 10:51:54 +0800
Subject: [PATCH] fix #2649 (#2650)

---
 .../extensions/visual-designer/src/utils/nodeOperation.ts     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Composer/packages/extensions/visual-designer/src/utils/nodeOperation.ts b/Composer/packages/extensions/visual-designer/src/utils/nodeOperation.ts
index 8eb376092a..5aee5458f4 100644
--- a/Composer/packages/extensions/visual-designer/src/utils/nodeOperation.ts
+++ b/Composer/packages/extensions/visual-designer/src/utils/nodeOperation.ts
@@ -2,6 +2,6 @@
 // Licensed under the MIT License.
 
 export function scrollNodeIntoView(selector: string) {
-  const node: Element = document.querySelector(selector) as Element;
-  node.scrollIntoView(true);
+  const node = document.querySelector(selector);
+  node?.scrollIntoView(true);
 }