Errors starting frontend on angular project visual studio code

Question

I got this error when I just download and npm/install/run this angular based project.https://github.com/OpenClassrooms-Student-Center/dwj-projet6

Instructions:

• Clone project
• Execute npm install
• Execute npm start.
• API execution on http://localhost:3000

Errors

ng serve Your global Angular CLI version (11.2.6) is greater than your local version (7.0.7). 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.project (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\@angular-devkit\core\src\workspace\workspace.js:215:42) at MergeMapSubscriber._tryNext (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\operators\mergeMap.js:69:27) at MergeMapSubscriber._next (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\operators\mergeMap.js:59:18) at MergeMapSubscriber.Subscriber.next (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\Subscriber.js:67:18) at MergeMapSubscriber.notifyNext (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\operators\mergeMap.js:92:26) at InnerSubscriber._next (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\InnerSubscriber.js:28:21) at InnerSubscriber.Subscriber.next (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\Subscriber.js:67:18) at MapSubscriber._next (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\operators\map.js:55:26) at MapSubscriber.Subscriber.next (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\Subscriber.js:67:18) at SwitchMapSubscriber.notifyNext (C:\Users\Phil\Desktop\Beta\dwj-projet6\node_modules\rxjs\internal\operators\switchMap.js:86:26)

Thank you

Answer 1

It's works fine for me.

Try below way maybe it help you

Solution 1: Delete node_modules folder and run npm install.

Solution 2: I think you should decrease your angular CLI version, try with CLI version 8 .