Solution for failed to run yiic

This is a common error we usually get if we did not redirect correctly to YiiRoot path.

PHP Warning:  require_once(/home/projectname/protected/../YiiR                                                                oot/framework/yiic.php): failed to open stream: No such file or directory in /ho                                                                me/projectname/protected/yiic.php on line 7

PHP Fatal error:  require_once(): Failed opening required '/home/projectname/protected/../YiiRoot/framework/yiic.php' (include_path='.:/usr/sh                                                                are/pear:/usr/share/php') in /home/projectname/protected/yiic.php on line 7

Step 1:
Check the following file:
- index.php 
Change the following path according to your YiiRoot path
$yii=dirname(__FILE__).'/../../YiiRoot/framework/yii.php';

Step 2:
- projectname/protected/yiic.php
Change the following path according to your YiiRoot path
$yiic=dirname(__FILE__).'/../../YiiRoot/framework/yiic.php';