title: AIDL file in Android project: strange "package" syntax error
body: <p>I create Android project with plugins. 
  When I create simple AIDL file, the compilation breaks with strange errors and no interface class is generated.</p>
  
  <p>My AIDL file:</p>
  
  <pre><code>package com.android.example.tryplugin
  interface IResPlugin {
      Bundle onClick( in int id, in int state );
  }
  </code></pre>
  
  <p>I have the following errors:</p>
  
  <pre><code>syntax error don't know what to do with "package"   
  syntax error don't know what to do with "com.android.example.tryplugin" 
  syntax error don't know what to do with "package"
  </code></pre>
  
  <p>I have also tried all advices from Google like "Try to clean and recompile", "Create new project with these files" etc.
  What is wrong with it?</p>