Angular2 Tutorial (Tour of Heroes): Cannot find module 'angular2-in-memory-web-api'

Question

I have followed the Tutorial. After changing app/maint.ts in the Http chapter I get the error when starting the app via command line:

ap

Answer 1

If you are using angular cli, you would get this error.

Please add 'angular2-in-memory-web-api' in the const barrels in the system-config.ts file as below:

 const barrels: string[] = [
  // Angular specific barrels.
  '@angular/core',
  '@angular/common',
  '@angular/compiler',
  '@angular/forms',
  '@angular/http',
  '@angular/router',
  '@angular/platform-browser',
  '@angular/platform-browser-dynamic',

  // Thirdparty barrels.
  'rxjs',
  'angular2-in-memory-web-api',

  // App specific barrels.
  'app',
  'app/shared',
  /** @cli-barrel */
];

And add 'angular2-in-memory-web-api': 'vendor/angular2-in-memory-web-api' as below.

System.config({
  map: {
    '@angular': 'vendor/@angular',
    'rxjs': 'vendor/rxjs',
    'main': 'main.js',
    'angular2-in-memory-web-api': 'vendor/angular2-in-memory-web-api'
  },
  packages: cliSystemConfigPackages,

});

Rebuild using npm start. This resolved the issue for me.