Some PHP installations may use a different php.ini file for CLI PHP (command line PHP parser). As a result, when running the model or crud command in yiic shell, you may encounter errors like "YiiBase::include(PDO.php): failed to open stream..." or "...could not find driver", even though the requirement checker confirms you have PDO and the corresponding database driver.

To solve this problem, please double check your CLI PHP configuration. You may also use the following command to make sure your CLI PHP is using the specified php.ini file:

php -c path/to/php.ini protected/yiic.php shell