AppComponent_Host.ngfactory.js? [sm]:1 ERROR NullInjectorError: StaticInjectorError(AppModule)[HttpClient]: StaticInjectorError(Platform: core)[HttpClient]: code example

Example 1: NullInjectorError: No provider for HttpClient!

@NgModule({
...
imports:[ HttpClientModule ]
...
})

Example 2: No provider for HttpClient!

import { HttpClientModule } from '@angular/common/http';