Schema validation failed with the following errors: Data path “.builders['app-shell']” should have required property 'class'

Question

Schema validation failed with the following errors:
  Data path \".builders[\'app-shell\']\" should have required property \'class\'.

Schema validation failed with the          


        

Answer 1

1. open cmd from current project
2. npm uninstall @angular-devkit/build-angular
3. npm install --save-dev @angular-devkit/build-angular