I have upgraded to Angular 8 and found the in lazy loading modules routing. While upgrading CLI itself changed all my lazy loading routes according to new syntax.
ERROR in ./src/app/app.routing.ts 31:36
Module parse failed: Unexpected token (31:36)
You may need an appropriate loader to handle this file type.
| title: “abc”
loadChildren: () => import('./modules/abc/abc.module').then(m => m.AbcModule)
loadChildren: () => import('abc/abc.module').then((m) => m.AbcModule),