我在学习angular企业协作平台遇到了一个问题，能帮我看看吗？

Question

报了一个错！ Uncaught Error: Template parse errors: 'md-toolbar' is not a known element: 1. If 'md-toolbar' is an Angular component, then verify that it is part of this module. git地址在: https://github.com/yyccQQu/0405newNg/tree/dev/my-app

Answer 1

If 'md-toolbar' is an Angular component, then verify that it is part of this module.

you 没有 把 md-toolbar import 到 module里