I can't connect to the internet. I keep getting an 'error in the network preferences pane'

Hi
I am having difficulties connecting my 2102 macbook air to the internet using 10.9.1 mavericks.  The problem is that when I select the networck in the preferences networks panel, the panel extends down and says
Preferences Error
There was an error in Network perference pane. 
my machine keeps serching under the network menu item but it cannot connect to any network.   I can connect tho this network no problem using my iphone or through my main computer which has a wired link.
I have tried an apple hardware test which showed up as having no problems.
What should I do?

Some users with various Wi-Fi problems have reported that they were given the following instructions by Apple Support, sometimes with success. After completing the procedure, you'll have to recreate all your settings in the Networkpreference pane. Make sure you know how to do that before you begin. Taking screenshots of the preference pane may be helpful.
Step 1
Back up all data.
Triple-click anywhere in the line below on this page to select it:
/Library/Preferences/SystemConfiguration
Right-click or control-click the highlighted line and select
Services ▹ Reveal
from the contextual menu.* A folder should open with an item named "SystemConfiguration" selected. Move the selected item to the Trash. You may be prompted for your administrator password. Reboot and recreate the network settings.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combinationcommand-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.
Step 2
Reset the System Management Controller.
Step 3
Reset the PRAM.

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