Uncaught Error: Element type is invalid: expected a string or a class/function but got: object.

Uncaught Error: Element type is invalid: expected a string or a class/function but got: object.

fixed:
把DOM节点写成函数或者组件再丢进去即可.
直接写dom常量的话就是一个对象，而我们需要的是一个可供渲染的组件

// 如
const Item =  <Text  content="A bug is given" />

// 改成
const Item =  () =>  <Text  content="a bug died" />