From e81e0a551218ea5e0597c3885887b5eb5f58194e Mon Sep 17 00:00:00 2001
From: wanglin2 <1013335014@qq.com>
Date: Wed, 9 Aug 2023 17:12:55 +0800
Subject: [PATCH] =?UTF-8?q?Fix=EF=BC=9A=E4=BF=AE=E5=A4=8D=E5=BF=AB?=
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---
 simple-mind-map/src/plugins/Drag.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/simple-mind-map/src/plugins/Drag.js b/simple-mind-map/src/plugins/Drag.js
index 28a8b354..fd99c5bf 100644
--- a/simple-mind-map/src/plugins/Drag.js
+++ b/simple-mind-map/src/plugins/Drag.js
@@ -204,7 +204,7 @@ class Drag extends Base {
 
   //  检测重叠节点
   checkOverlapNode() {
-    if (!this.drawTransform) {
+    if (!this.drawTransform || !this.placeholder) {
       return
     }
     const { nodeDragPlaceholderMaxSize } = this.mindMap.opt