[Solved] StaticInjectorError(Platform: core)[RegisterStoreComponent -> Router]: NullInjectorError: No provider for Router! Angular 5.2 / Karma-jasmine

by


add the following to the imports on your app.module.ts 

RouterModule.forRoot(
      [
        { path: "", component: LoginComponent}
      ]
    )

solved StaticInjectorError(Platform: core)[RegisterStoreComponent -> Router]: NullInjectorError: No provider for Router! Angular 5.2 / Karma-jasmine