Fatal error: Uncaught Error: Class 'CFormModel' not found in /var/www/html/dev/yii/tests/framework/validators/ValidatorTestModel.php:2 Stack trace: #0 /var/www/html/dev/yii/tests/framework/validators/CRequiredValidatorTest.php(2): require_once() #1 {main} thrown in /var/www/html/dev/yii/tests/framework/validators/ValidatorTestModel.php on line 2