From 9bd9006690fa2df3bada9532221dd16c0af139df Mon Sep 17 00:00:00 2001
From: "Mata.Li" <Mata.Li@fanruan.com>
Date: Tue, 31 Jul 2018 21:01:43 +0800
Subject: [PATCH] REPORT-10223

---
 .../src/main/java/com/fr/design/DesignerEnvManager.java       | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java b/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java
index 4e45f0e0c..fb9466ba3 100644
--- a/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java
+++ b/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java
@@ -561,7 +561,9 @@ public class DesignerEnvManager implements XMLReadable, XMLWriter {
 
                     DesignerEnvManager.getEnvManager().setCurEnvName(envName);
                     DesignUtils.refreshDesignerFrame();
-                    HistoryTemplateListPane.getInstance().getCurrentEditingTemplate().refreshToolArea();
+                    if(HistoryTemplateListPane.getInstance().getCurrentEditingTemplate() != null) {
+                        HistoryTemplateListPane.getInstance().getCurrentEditingTemplate().refreshToolArea();
+                    }
                     DesignTableDataManager.fireDSChanged(new HashMap<String, String>());
                 }
             });