title: Angular 2 AoT ngc does not generate any files
body: <p>When I run the offline compiler ngc on an Angular 2 RC5 vanilla project created by angular-cli, it does nothing.</p>
  
  <p>Here's what I did</p>
  
  <p>Setup:</p>
  
  <pre><code>ng new my-project
  cd my-project
  npm install @angular/compiler-cli typescript@next @angular/platform-server @angular/compiler
  </code></pre>
  
  <p>Running the compiler</p>
  
  <pre><code>./node_modules/.bin/ngc -p ./src
  </code></pre>
  
  <p>The command output nothing and I did not see it generate a min.ngfactory.ts</p>
  
  <p>What am I missing?</p>