error - element - Unknown custom element: - did you register the component correctl

cdn 引入

• Unknown custom element: - did you register the component correctly? For recursive components, make sure to provide the "name" option.

// 報錯
<script src="./lib/element-ui/element.js"></script>
<script src="./lib/vue.js"></script>
// 修改
<script src="./lib/vue.js"></script>
<script src="./lib/element-ui/element.js"></script>