How to solve this error in cakephp?

Fatal error: Uncaught Error: Class 'Controller' not found in C:\xampp\htdocs\cakephp\lib\Cake\Error\ExceptionRenderer.php:174 Stack trace: #0 C:\xampp\htdocs\cakephp\lib\Cake\Error\ExceptionRenderer.php(92): ExceptionRenderer->_getController(Object(FatalErrorException)) #1 C:\xampp\htdocs\cakephp\lib\Cake\Error\ErrorHandler.php(126): ExceptionRenderer->__construct(Object(FatalErrorException)) #2 C:\xampp\htdocs\cakephp\lib\Cake\Error\ErrorHandler.php(274): ErrorHandler::handleException(Object(FatalErrorException)) #3 C:\xampp\htdocs\cakephp\lib\Cake\Error\ErrorHandler.php(213): ErrorHandler::handleFatalError(64, 'Cannot use 'Obj...', 'C:\xampp\htdocs...', 30) #4 C:\xampp\htdocs\cakephp\lib\Cake\Core\App.php(933): ErrorHandler::handleError(64, 'Cannot use 'Obj...', 'C:\xampp\htdocs...', 30, Array) #5 C:\xampp\htdocs\cakephp\lib\Cake\Core\App.php(906): App::_checkFatalError() #6 [internal function]: App::shutdown() #7 {main} thrown in C:\xampp\htdocs\cakephp\lib\Cake\Error\ExceptionRenderer.php on line 174

Blockquote