diff --git a/src/renderer/src/utils/comm.js b/src/renderer/src/utils/comm.js
index a0d457f..81dd001 100644
--- a/src/renderer/src/utils/comm.js
+++ b/src/renderer/src/utils/comm.js
@@ -127,7 +127,10 @@ export const removePropertyOf = function(obj){
 export function removeTree(list) {
   var this_ = this
   for (var i in list) {
-    if (list[i].children.length == 0) {
+    if (list[i].children == null) {
+      delete list[i].children;
+    }
+    else if (list[i].children.length == 0) {
       list[i].children = undefined
     } else {
       this_.removeTree(list[i].children)