fix

src/app/app.module.ts

@@ -6,13 +6,19 @@ import { IonicModule, IonicRouteStrategy } from '@ionic/angular';
 import { SplashScreen } from '@ionic-native/splash-screen/ngx';
 import { StatusBar } from '@ionic-native/status-bar/ngx';
 
+//import { HttpModule } from '@angular/http'
+import { HTTP } from '@ionic-native/http/ngx';
+import { HttpClientModule } from '@angular/common/http'
+
 import { AppComponent } from './app.component';
 import { AppRoutingModule } from './app-routing.module';
 
 @NgModule({
   declarations: [AppComponent],
   entryComponents: [],
-  imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule],
+  imports: [BrowserModule, IonicModule.forRoot(), 
+    HttpClientModule,
+    AppRoutingModule],
   providers: [
     StatusBar,
     SplashScreen,