Magento Layout Error after changing Base URL {{base_url}}

When I first login to admin menu on my Magento, I was bothered by this message at the top of my admin interface.

{{base_url}} is not recommended to use in a production environment to declare the Base Unsecure Url / Base Secure Url. It is highly recommended to change this value in your Magento configuration.

Well, most likely you will stumble upon this message on localhost installation. Please do not change this to uncorrect value or elseā€¦ your Magento site will just break down. If you did it anyway, follow these steps:

  1. Go to your Magento database (you can use phpmyadmin) and open core_config_data table. Then find a row which has path = ‘web/unsecure/base_url’ and change the value back to {{base_url}}.
  2. Finally, to make it works you need to clear out any cache. Go to your magento installation, and open var folder, then delete the session folder (in other word, delete /magento/var/session).

Now, if you still want to update {{base_url}}, read this article Well, in my opinion, Magento is premature product, so it is still fragile. You have to think twice before implement it on your production site.