app.component.ts

import { TranslateCompiler, TranslateModule } from '@ngx-translate/core';
import { TranslateMessageFormatCompiler } from 'ngx-translate-messageformat-compiler';
@NgModule({
  imports: [
    ...
    TranslateModule.forRoot({
      compiler: {
          provide: TranslateCompiler,
          useClass: TranslateMessageFormatCompiler
      },
      loader: {
        provide: TranslateLoader,
        useFactory: (createTranslateLoader),
        deps: [HttpClient]
      }
    })
    ...
  ],  
  declarations: [AppComponent],
  providers: [InAppBrowser, SplashScreen, StatusBar],
  bootstrap: [AppComponent]
})