While trying to add a PrimeNG table I broke my build here: https://github.com/BillyCharter87/Tech-O-Dex-UI/tree/BrokeIt
I recall updating my package.json fr
package.json
Add HttpClientModule in your app.module.ts and try, it will work so sure. for example
HttpClientModule
app.module.ts
import { HttpModule } from '@angular/http