From 5d5dc468c06f70aa6a974e83436f4eac02d060b3 Mon Sep 17 00:00:00 2001
From: monitor1394 <monitor1394@gmail.com>
Date: Mon, 1 Jun 2020 12:38:59 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E8=83=8C=E6=99=AF=E7=BB=84?=
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---
 Runtime/Internal/BaseChart.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Runtime/Internal/BaseChart.cs b/Runtime/Internal/BaseChart.cs
index eb2ecaf6..ae9b1048 100644
--- a/Runtime/Internal/BaseChart.cs
+++ b/Runtime/Internal/BaseChart.cs
@@ -258,6 +258,7 @@ namespace XCharts
 
         private void InitBackground()
         {
+            if (!transform.parent) return;
             int childCount = transform.parent.childCount;
             if (childCount > 2) m_Background.runtimeActive = false;
             else if (childCount == 1) m_Background.runtimeActive = true;