angular: Angular 4 fails to provide MockBackend

How i can run Angular 4 with MVC Asp.net ?? anybody please help

I believe I am seeing a similar issue.
If I build with AOT (ng build --prod): ERROR in ./src/$$_gendir/app/app.module.ngfactory.ts Module not found: Error: Can’t resolve ‘@angular/http/testing/src/mock_backend’ in ‘C:\git\web_lcm_gatwick\src$$_gendir\app’ @ ./src/$$_gendir/app/app.module.ngfactory.ts 60:0-67 @ ./src/main.ts @ multi ./src/main.ts

If I comment out MockBackend in my providers the issue goes away. If I disable AOT, the issue goes away.

Simple reproduction with angular-cli 1.0.0:

1. ng new ngcli
2. edit app.module.ts

import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';
import { MockBackend } from "@angular/http/testing";

import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    HttpModule
  ],
  providers: [
      MockBackend
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

1. ng build --prod produces error:

ERROR in ./src/$$_gendir/app/app.module.ngfactory.ts Module not found: Error: Can’t resolve ‘@angular/http/testing/src/mock_backend’ in ‘C:\git\ngcli\src$$_gendir\app’ @ ./src/$$_gendir/app/app.module.ngfactory.ts 23:0-66 @ ./src/main.ts @ multi ./src/main.ts

1. if you run ng build everything works fine

Same problem using Angular CLI 1.0.0 and Angular 4.0.0

The issue is closed but i still get the error, i just upgraded to angular 4 (4.1.3) 2 days before, all the production code works fine, but all the tests are down, on reason is the MockBackend imported form ‘@angular/http/testing’ is undefined. My project don’t use cli, the test is started by Karma and webpack. the curious thing is all other angular module import works except for testing include ‘@angular/http/testing’ and ‘@angular/core/testing’ Any ideas? thanks!

Confirmed fix in 4.1.2. Thanks everyone!

Just tried this again with Angular version 4.0.3 and the issue still exists.
Using my reproduction steps above >https://github.com/angular/angular/issues/15521#issuecomment-290118657

ng build --prod or ng serve --prod produces the error.