From 91f44010e7023bf35950c080fafff290293e872f Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@buaa.edu.cn>
Date: Mon, 9 Apr 2018 20:14:52 +0800
Subject: [PATCH] [bugfix] Dialog: close method may cause error (#841)

---
 packages/dialog/index.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/dialog/index.js b/packages/dialog/index.js
index 262ec734b..4c94fdc4a 100644
--- a/packages/dialog/index.js
+++ b/packages/dialog/index.js
@@ -57,7 +57,9 @@ Dialog.confirm = options => Dialog({
 });
 
 Dialog.close = () => {
-  instance.value = false;
+  if (instance) {
+    instance.value = false;
+  }
 };
 
 Dialog.setDefaultOptions = options => {