From 83482a2440cee57199b642ea4773eea3c89d8d8c Mon Sep 17 00:00:00 2001
From: BarZ <andy820621@gmail.com>
Date: Fri, 28 Apr 2023 14:30:52 +0800
Subject: [PATCH] As the 'anchor' of the Transformer is undefined when there is
 no anchor (such as 'top-left', 'top-center', etc.), the code
 'anchor.setAttrs(attrs)' causes an error: 'Cannot read properties of
 undefined (reading 'setAttrs')'. Therefore, I want to add an if statement to
 check for the existence of the 'anchor' before setting its attributes.

---
 src/shapes/Transformer.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shapes/Transformer.ts b/src/shapes/Transformer.ts
index cedf77fe..ac887268 100644
--- a/src/shapes/Transformer.ts
+++ b/src/shapes/Transformer.ts
@@ -1120,7 +1120,7 @@ export class Transformer extends Group {
 
   _batchChangeChild(selector: string, attrs: any) {
     const anchor = this.findOne(selector);
-    anchor.setAttrs(attrs);
+    if (anchor) anchor.setAttrs(attrs);
   }
 
   update() {