From d6e5175a0bf790c5e87b47883045b5d600e4cb74 Mon Sep 17 00:00:00 2001
From: taoria <445625470@qq.com>
Date: Thu, 1 Sep 2022 11:14:17 +0800
Subject: [PATCH] fix:add a guardian when create blackboard data entry

---
 .../Editor/GraphBlackboard/DefaultGraphBlackboardView.cs   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/TNodeGraphViewImpl/Editor/GraphBlackboard/DefaultGraphBlackboardView.cs b/TNodeGraphViewImpl/Editor/GraphBlackboard/DefaultGraphBlackboardView.cs
index 024162b..0f05ef3 100644
--- a/TNodeGraphViewImpl/Editor/GraphBlackboard/DefaultGraphBlackboardView.cs
+++ b/TNodeGraphViewImpl/Editor/GraphBlackboard/DefaultGraphBlackboardView.cs
@@ -88,8 +88,11 @@ namespace TNodeGraphViewImpl.Editor.GraphBlackboard{
             bool isRuntimeGraph,
             BlackboardSection blackboardSection, int index){
             var property = serializedObject.FindProperty("data");
-                property =  property.FindPropertyRelative(field.Name).GetArrayElementAtIndex(index);
-            
+            property =  property.FindPropertyRelative(field.Name)?.GetArrayElementAtIndex(index);
+            if (property == null){
+                
+                Debug.LogError($"Can not find property {field.Name} in {serializedObject.targetObject.name}");
+            }
             BlackboardDataEntry entry = new BlackboardDataEntry(field.FieldType){
                 propertyPath = field.Name+"."+index,
             };