模式验证失败，出现以下错误@angular-devkit

Question

当启动NgServe时，我得到下面的错误。我已经多次清除缓存，还更新了NPM。在安装NPM时，我没有遇到任何问题。使用Angular NGServe命令，我无法继续操作。如果需要任何进一步的细节，请帮助进一步进行，并让我知道。

ng serve
Your global Angular CLI version (7.3.9) is greater than your local
version (7.1.4). The local Angular CLI version is used.

To disable this warning use "ng config -g cli.warnings.versionMismatch false".
Schema validation failed with the following errors:
  Data path ".builders['app-shell']" should have required property 'class'.
Error: Schema validation failed with the following errors:
  Data path ".builders['app-shell']" should have required property 'class'.
    at MergeMapSubscriber._registry.compile.pipe.operators_1.concatMap.validatorResult [as project] 
    (C:\workspace\web\space\POC\app-ui\node_modules\@angular\cli\node_modules\@angular-devkit\core\src\workspace\workspace.js:215:42)
    at MergeMapSubscriber._tryNext (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\operators\mergeMap.js:69:27)
    at MergeMapSubscriber._next (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\operators\mergeMap.js:59:18)
    at MergeMapSubscriber.Subscriber.next (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\Subscriber.js:67:18)
    at MergeMapSubscriber.notifyNext (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\operators\mergeMap.js:92:26)
    at InnerSubscriber._next (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\InnerSubscriber.js:28:21)
    at InnerSubscriber.Subscriber.next (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\Subscriber.js:67:18)
    at MapSubscriber._next (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\operators\map.js:55:26)
    at MapSubscriber.Subscriber.next (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\Subscriber.js:67:18)
    at SwitchMapSubscriber.notifyNext (C:\workspace\web\space\POC\app-ui\node_modules\rxjs\internal\operators\switchMap.js:86:26)

Answer 1

ng update @angular/cli @angular/core试试这个