From b0c95d36aea4999a0d31284fd1872760346e5ce2 Mon Sep 17 00:00:00 2001
From: drafish <xwlyy1991@163.com>
Date: Fri, 5 Jul 2019 09:44:12 +0800
Subject: [PATCH] fix issue #930 (#931)

---
 components/form/FormItem.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/form/FormItem.jsx b/components/form/FormItem.jsx
index be85cb0424..feb7d6b880 100644
--- a/components/form/FormItem.jsx
+++ b/components/form/FormItem.jsx
@@ -422,7 +422,7 @@ export default {
         const directive = find(vnode.data.directives, ['name', 'decorator']);
         warning(
           !directive || (directive && Array.isArray(directive.value)),
-          `Invalid directive: type check failed for directive "decorator". Expected Array, got ${typeof directive.value}. At ${
+          `Invalid directive: type check failed for directive "decorator". Expected Array, got ${typeof (directive ? directive.value : directive)}. At ${
             vnode.tag
           }.`,
         );