diff --git a/src/components/PageHeader/index.js b/src/components/PageHeader/index.js
index 01742a54..130f35ca 100644
--- a/src/components/PageHeader/index.js
+++ b/src/components/PageHeader/index.js
@@ -50,7 +50,7 @@ export default class PageHeader extends PureComponent {
         <Breadcrumb className={styles.breadcrumb}>
           {
             breadcrumbList.map(item => (
-              <Breadcrumb.Item>
+              <Breadcrumb.Item key={item.title}>
                 {item.href ? <a href="">{item.title}</a> : item.title}
               </Breadcrumb.Item>)
             )
diff --git a/src/components/TagSelect/demo/simple.md b/src/components/TagSelect/demo/simple.md
index 0f67c1ca..c77d1de0 100644
--- a/src/components/TagSelect/demo/simple.md
+++ b/src/components/TagSelect/demo/simple.md
@@ -6,7 +6,7 @@ title: Simple
 简单的页头。
 
 ````jsx
-import TagSelect from 'ant-design-pro/lib/CountDown';
+import TagSelect from 'ant-design-pro/lib/TagSelect';
 
 const TagOption = TagSelect.Option;
 const TagExpand = TagSelect.Expand;