Can't get input field to show on Angular 4

Question

I'm following this Angular 4 tutorial:

https://youtu.be/z6qFqlwUxkQ?t=16m33s

And in that part of the video he has the following code:

View:

<input type="text" [(ngModel)]="name">
<p>{{ name }}</p>

Controller:

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  name = '';
}

It works for him but not for me, I'm not getting any compilation errors but the page is blank, I don't see an input field at all. Any idea why? I have the exact same code and am using Angular 4 also..

EDIT:

here's the contents of app.modue.ts:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

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

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

Answer 1

Can you post code for app-module.ts I suspect you are missing something inside @ngModule Compare that to the video... I suspect it's one of FormsModule or ReactiveFormsModule
haven't watched video... You'll probably be using FormsModule if it's a Hello World type scenario.

import {FormsModule, ReactiveFormsModule} from '@angular/forms';

NgModule({
....
imports: [      ..., 
   FormsModule,  
    ReactiveFormsModule]
....
})
export class AppModule {
}