After you have installed all the needed software press Alt+F2 and KRunner will appear. Type akonadi and choose to run the Akonadi Tray Utility. An icon will appear at the tray. Right click on it and select to start the Akonadi server. Afterwards press the Configure option and move to the Akonadi Server Configuration tab. There press the Test button. Make sure that you get no errors. Next go to the Akonadi Resources Configuration tab and press the Add button. Select to add an Akonadi Google Calendar Resource. You will be asked to supply your gmail username and password. Press again the Add button and this time select to add an Akonadi Google Contacts Resource. Once again supply your username and password. If the two resources are synchronized ok you should see something like this. Just press the Ok button. Now run KAddressbook. In the Address Books window press the green cross and choose to add an Akonadi Address Book. If everything is ok your Gmail contacts should appear. ** Note: Some information of my contacts didn't synchronized correctly that's why I have advised you for taking a back up. Next run KOrganizer. Again choose to add an Akonadi Calendar. And here is your Google Calendar synchronized with KOrganizer.