项目启动报错？

[zhouxiangxian]

Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.

[JoeyBling]

使用IDEA如果报NoClassDefFoundError的错误，请参考此文章进行解决：https://www.jianshu.com/p/7bbeb663f1c9

[senjieboy]

[ERROR][2021-04-27 21:16:12] [ErrorPageFilter:206] Cannot forward to error page for request [/admin/login.html] as the response has already been committed. As a result, the response may have the wrong status code. If your application is running on WebSphere Application Server you may be able to resolve this problem by setting com.ibm.ws.webcontainer.invokeFlushAfterService to false
这个错误怎末解决：