ValidationError: Invalid options object. Dev Server has been initialized using an options object that does not match the API schemaheaders?, historyApiFallback?, host?, hot?, http2……问题解决

vue 项目昨天还启动好好了，早上过来发现启动报错，报错内容如下

 

 

解决步骤

vue config.js 配置文件有问题，修改以后就可以正常启动了，修改内容如下