title: Android: strange error in Manifest
body: <p>I was modyfing my android app, and I was trying it on real device (Run Application in eclipse) and all was working good. So When I was satisfied of my changes, I opened the Manifest in order to modify the version for releasing it, but WITHOUT ANY CHANGES in Manifest an error occurred at line:</p>
  
  <pre><code>&lt;uses-permission android:name="android.permission.INSTALL_PACKAGES" /&gt;
  </code></pre>
  
  <p>the error is:</p>
  
  <pre><code>Permission is only granted to system apps
  </code></pre>
  
  <p>How is this possible? I builded my application many times using this line.</p>