From 7e54917d9415649cf6f672016262370b3cf4dfa2 Mon Sep 17 00:00:00 2001
From: laoluo <ron.f.luo@gmail.com>
Date: Tue, 20 Dec 2022 17:21:48 +0800
Subject: [PATCH] perf: Improve code compatibility

---
 .../src/views/MainView/sidebar/SwitchAttributeList/index.tsx    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/lb-components/src/views/MainView/sidebar/SwitchAttributeList/index.tsx b/packages/lb-components/src/views/MainView/sidebar/SwitchAttributeList/index.tsx
index 1399ba7f3..2dd6047ef 100644
--- a/packages/lb-components/src/views/MainView/sidebar/SwitchAttributeList/index.tsx
+++ b/packages/lb-components/src/views/MainView/sidebar/SwitchAttributeList/index.tsx
@@ -34,7 +34,7 @@ const SwitchAttributeList: React.FC<IProps> = (props) => {
       });
     }
     return () => {
-      toolInstance.unbindAll('changeAttributeSidebar');
+      toolInstance?.unbindAll('changeAttributeSidebar');
     };
   }, [toolInstance, listRef]);