From d3f5c544d0511d950f0668cb17023bd76b063dbb Mon Sep 17 00:00:00 2001
From: guy <guy@finereport.com>
Date: Tue, 26 Dec 2017 15:54:38 +0800
Subject: [PATCH] update

---
 dist/fix/fix.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dist/fix/fix.js b/dist/fix/fix.js
index be39030472..d65fb4f967 100644
--- a/dist/fix/fix.js
+++ b/dist/fix/fix.js
@@ -1226,7 +1226,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
             if (model instanceof Observer || model instanceof Model) {
                 model = model.model;
             }
-            if (model.__ob__) {
+            if (model && model.__ob__) {
                 this.$$model = model;
             } else {
                 this.options = model || {};