Angular cli after update npm start give error : <p>I create application using angular cli and use backend proxy to handle backend and using polymer(vaadin) it work correctly until I update to angular cli 1.0.0-beta.22 it give Error </p>

<pre><code>Tried to find bootstrap code, but could not. Specify either statically analyzable bootstrap code or pass in an entryModule to the plugins options.
</code></pre>

<p><strong>proxy.conf.json</strong></p>

<pre><code>{
  "/api": {
    "target": "http://127.0.0.1:3000",
    "secure": false
  }
}
</code></pre>

<p><strong>main-polymer.ts</strong></p>

<pre><code>document.addEventListener('WebComponentsReady', () =&gt; {
  require('./main.ts');
});
</code></pre>

<p><strong>main.ts</strong></p>

<pre><code>import './polyfills.ts';

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { environment } from './environments/environment';
import { AppModule } from './app/';

if (environment.production) {
  enableProdMode();
}

// platformBrowserDynamic().bootstrapModule(AppModule);
platformBrowserDynamic().bootstrapModule(AppModule);
</code></pre>

<p>how can I correct this?.</p>
