title: ionic info shows ionic framework is unknown
body: <p>I would like run the ionic app in the browser. </p>
  
  <p>I used this command</p>
  
  <p><code>ionic serve</code></p>
  
  <p>But I got this error <code>Error: spawn EACCES</code></p>
  
  <p>I check ionic info but I got ionic framework is unknown</p>
  
  <pre><code>global packages:
  
  @ionic/cli-utils : 1.4.0
  Cordova CLI      : 7.0.1 
  Gulp CLI         : CLI version 3.9.1 Local version 3.9.1
  Ionic CLI        : 3.4.0
  </code></pre>
  
  <p>local packages:</p>
  
  <pre><code>@ionic/cli-plugin-cordova : 1.4.1
  Cordova Platforms         : android 6.4.0
  Ionic Framework           : unknown
  </code></pre>
  
  <p>System:</p>
  
  <pre><code>Node       : v7.10.1
  OS         : Linux 4.13
  Xcode      : not installed
  ios-deploy : not installed
  ios-sim    : not installed
  npm        : 4.2.0 
  </code></pre>