angular2-cli gives @multi styles error
<p>I started using angular2-cli recently and created a new project. I wanted to use bootstrap in my project hence I installed bootstrap and then wanted to import the bootstrap css file like it is shown in the the angular2-cli guide here. <a href="https://github.com/angular/angular-cli#global-library-installation" rel="noreferrer">https://github.com/angular/angular-cli#global-library-installation</a>
After running ng serve I get the following error.</p>

<blockquote>
  <p>ERROR in multi styles Module not found: Error: Can't resolve
  '/home/krishna/angular2_migrate/webui/node_modules/bootstrap/dist/css/bootstrap.min.css'
  in
  '/home/krishna/angular2_migrate/webui/node_modules/angular-cli/models'
  @ multi styles</p>
</blockquote>

<p>What am I doing wrong ?</p>

<p>Information about angular2-cli version</p>

<pre><code>krishna@Krishna:~/angular2_migrate/webui$ ng version
Could not start watchman; falling back to NodeWatcher for file system events.
Visit http://ember-cli.com/user-guide/#watchman for more info.
angular-cli: 1.0.0-beta.17
node: 4.4.3
os: linux x64
</code></pre>