==================== ERROR MESSAGE  ====================

  * When you found following error message, do as listed here.
  * {{::14.jpeg|}}
  * Click on setting button as shown below.
  * Then click on preferences.
  * {{::15.jpeg|}}
  * Click on Network.
  * Following screen will be shown.
  * {{::16.jpeg|}}
  * Choose "Direct Connection to the Internet"
  * All the proxy boxes should be blank as shown to you in following screen.
  * {{::17.jpeg|}}
  * Then try it again to install software.

 ==================== ERROR MESSAGE ABOUT INTERNET  ====================
  * Make sure that Connection setting should be like this.
  * {{::18.jpeg|}}