From 5e7e4880493b53c081de4674e2236754321cd9bd Mon Sep 17 00:00:00 2001
From: "jiulong.hjl" <jiulong.hjl@alibaba-inc.com>
Date: Wed, 15 Jul 2020 17:05:40 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E5=8F=96=E4=B8=8D?=
 =?UTF-8?q?=E5=88=B0=E5=80=BC=E7=9A=84=E6=83=85=E5=86=B5?=
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---
 packages/designer/src/designer/setting/utils.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/designer/src/designer/setting/utils.js b/packages/designer/src/designer/setting/utils.js
index 991918c54..59085e5f4 100644
--- a/packages/designer/src/designer/setting/utils.js
+++ b/packages/designer/src/designer/setting/utils.js
@@ -37,9 +37,9 @@ export class Transducer {
     if (Array.isArray(setter)) {
       setter = setter[0];
     } else if (isValidElement(setter) && setter.type.displayName === 'MixedSetter') {
-      setter = setter.props.setters[0];
+      setter = setter.props?.setters?.[0];
     } else if (typeof setter === 'object' && setter.componentName === 'MixedSetter') {
-      setter = setter.props.setters?.[0];
+      setter = setter.props?.setters?.[0];
     }
 
     if (isSetterConfig(setter)) {