diff --git a/components/cascader/index.jsx b/components/cascader/index.jsx
index b8f716b7d..a714a46c3 100644
--- a/components/cascader/index.jsx
+++ b/components/cascader/index.jsx
@@ -486,8 +486,8 @@ const Cascader = {
     }
     // The default value of `matchInputWidth` is `true`
     const resultListMatchInputWidth = showSearch.matchInputWidth !== false;
-    if (resultListMatchInputWidth && (inputValue || isNotFound) && this.$refs.input) {
-      dropdownMenuColumnStyle.width = findDOMNode(this.input).offsetWidth + 'px';
+    if (resultListMatchInputWidth && (inputValue || isNotFound) && this.input) {
+      dropdownMenuColumnStyle.width = findDOMNode(this.input.input).offsetWidth + 'px';
     }
     // showSearch时，focus、blur在input上触发，反之在ref='picker'上触发
     const inputProps = {
diff --git a/components/empty/empty.jsx b/components/empty/empty.jsx
index 1c9c2fc06..06f278543 100644
--- a/components/empty/empty.jsx
+++ b/components/empty/empty.jsx
@@ -1,10 +1,10 @@
 const Empty = () => {
   return (
     <svg width="184" height="152" viewBox="0 0 184 152" xmlns="http://www.w3.org/2000/svg">
-      <g fill="none" fillRule="evenodd">
+      <g fill="none" fill-rule="evenodd">
         <g transform="translate(24 31.67)">
           <ellipse
-            fillOpacity=".8"
+            fill-opacity=".8"
             fill="#F5F5F7"
             cx="67.797"
             cy="106.89"
diff --git a/components/empty/simple.jsx b/components/empty/simple.jsx
index 5eefa3a37..aa509abdb 100644
--- a/components/empty/simple.jsx
+++ b/components/empty/simple.jsx
@@ -1,9 +1,9 @@
 const Simple = () => {
   return (
     <svg width="64" height="41" viewBox="0 0 64 41" xmlns="http://www.w3.org/2000/svg">
-      <g transform="translate(0 1)" fill="none" fillRule="evenodd">
+      <g transform="translate(0 1)" fill="none" fill-rule="evenodd">
         <ellipse fill="#F5F5F5" cx="32" cy="33" rx="32" ry="7" />
-        <g fillRule="nonzero" stroke="#D9D9D9">
+        <g fill-rule="nonzero" stroke="#D9D9D9">
           <path d="M55 12.76L44.854 1.258C44.367.474 43.656 0 42.907 0H21.093c-.749 0-1.46.474-1.947 1.257L9 12.761V22h46v-9.24z" />
           <path
             d="M41.613 15.931c0-1.605.994-2.93 2.227-2.931H55v18.137C55 33.26 53.68 35 52.05 35h-40.1C10.32 35 9 33.259 9 31.137V13h11.16c1.233 0 2.227 1.323 2.227 2.928v.022c0 1.605 1.005 2.901 2.237 2.901h14.752c1.232 0 2.237-1.308 2.237-2.913v-.007z"