title: Yii require_once fail, can't run demo project
body: <p>Interestingly I have another version of yii running and that runs with out error but that one does not have gii. I installed the latest and when I build a demo project, it give me this error. I think it is related to permission. I tried different solution but could not make it work.</p>
  
  <p>I am using XAMMP on Mac OS Lion</p>
  
  <blockquote>
    <p>Fatal error: require_once() [function.require]: Failed opening
    required '/Users/tstuser/Sites/yii2/demo2/../framework/yii.php'
    (include_path='.:/Applications/XAMPP/xamppfiles/lib/php:/Applications/XAMPP/xamppfiles/lib/php/pear')
    in /Users/tstuser/Sites/yii2/demo2/index.php on line 13</p>
  </blockquote>
  
  <p>Trying changing the directory permission but to no avail.</p>