On my Windows 11 machine, I have install nodejs and Angular. created a project with ng new command and then tried to run it with ng serve. It is giving me following error c:\working\projects\xxxxxxx\xxxxxx-site>ng serve Error: Schema validation failed with the following errors: Data path "" must have required property 'browserTarget'. Ensure the file is part of the TypeScript program via the 'files' or 'include' property. I have not edited any file after ng new command. Am I missing any step? Angular CLI: 17.0.0 Node: 18.17.1 Package Manager: npm 9.6.7 OS: win32 x64 Angular: 17.0.2 ... animations, common, compiler, compiler-cli, core, forms ... platform-browser, platform-browser-dynamic, router Package Version --------------------------------------------------------- @angular-devkit/architect 0.1700.0 @angular-devkit/build-angular 17.0.0 @angular-devkit/core 17.0.0 @angular-devkit/schematics 17.0.0 @angular/cli 17.0.0 @schematics/angular 17.0.0 rxjs 7.8.1 typescript 5.2.2 zone.js 0.14.2 my serve setting on angular.js "serve": { "builder": "@angular-devkit/build-angular:dev-server", "options": { "browserTarget": "SmartTrader:build" }, "configurations": { "production": { "buildTarget": "SmartTrader:buildroduction" }, "development": { "buildTarget": "SmartTrader:build:development" } }, "defaultConfiguration": "development" }, "extract-i18n": { "builder": "@angular-devkit/build-angular:extract-i18n", "options": { "buildTarget": "SmartTrader:build" } }, I looking at https://angular.io/guide/setup-local my impression i didn't have to edit any files after doing ng new to run ng serve Continue reading...