前端报错
之前运行好好的,不知道怎么了
Starting development server...
ERROR ValidationError: Invalid options object. Dev Server has been initialized using an options object that does not match the API schema.
- options has an unknown property 'devServer'. These properties are valid:
object { allowedHosts?, bonjour?, client?, compress?, devMiddleware?, headers?, historyApiFallback?, host?, hot?, http2?, https?, ipc?, liveReload?, magicHtml?, onAfterSetupMiddleware?, onBeforeSetupMiddleware?, onListening?, open?, port?, proxy?, server?, setupExitSignals?, setupMiddlewares?, static?, watchFiles?, webSocketServer? }
ValidationError: Invalid options object. Dev Server has been initialized using an options object that does not match the API schema.
- options has an unknown property 'devServer'. These properties are valid:
object { allowedHosts?, bonjour?, client?, compress?, devMiddleware?, headers?, historyApiFallback?, host?, hot?, http2?, https?, ipc?, liveReload?, magicHtml?, onAfterSetupMiddleware?, onBeforeSetupMiddleware?, onListening?, open?, port?, proxy?, server?, setupExitSignals?, setupMiddlewares?, static?, watchFiles?, webSocketServer? }
at validate (D:\develop\demo1\demo\node_modules\webpack-dev-server\node_modules\schema-utils\dist\validate.js:158:11)
at new Server (D:\develop\demo1\demo\node_modules\webpack-dev-server\lib\Server.js:270:5)
at serve (D:\develop\demo1\demo\node_modules\@vue\cli-service\lib\commands\serve.js:194:20)
at processTicksAndRejections (internal/process/task_queues.js:97:5)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! demo@0.1.0 serve: `vue-cli-service serve`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the demo@0.1.0 serve script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in: