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

This worked for me:

In package.json

Changed "@angular-devkit/build-angular": "^0.800.0" --> "@angular-devkit/build-angular": "^0.10.0" Then:

 npm install
 ng serve

Specs:

Angular CLI: 6.1.5 Node: 10.15.3 OS: win32 x64 Angular: 6.1.9