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

I got this issue when installing Bootstrap.

The following commands are what worked for me:

npm uninstall @angular-devkit/build-angular

npm install @angular-devkit/build-angular@0.13.0