When trying to run the following code in a Windows 10 64-bit environment and a Chrome ver. 67.0.3396.99

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

  @Component({
    selector: 'mdb-root',
    templateUrl: 'app.component.html',
    styleUrls: ['app.component.css']

  })

  export class AppComponent {

    constructor(){
      this.onStartup();
    }

  onStartup(){
    console.log('Hello TS World');
  }
  }

I get an error: ERROR Error: The selector "mdb-root" did not match any elements at DefaultDomRenderer2.push../node_modules/@angular/platform-browser/fesm5/platform-browser.js.DefaultDomRenderer2.selectRootElement (platform-browser.js:1223) I am enjoying the tutorial, and would even like to help with the grammar of text write-up of it, if you want, but I want to have success going through it.

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