Class 'Controller' not found

Today I found a strange error when I open the project that yii shell creates.

But the Controller class is in components folder with

at main config file.

What is wrong

Check the user permissions on that folder…

I put Yii::import(‘application.components.Controller’); at the beginning of Sitecontroller and it works.

But why does not see the import of the config file?

Edit:I use xampp 1.7.3 and PHP Version 5.3.1