Whenever I am turning on the Developer mode in Magento 1.7 I am getting this warning message If there is any other warning or error this there it will show that error But when there is no error this screen is coming. Once I turn off the developer mode i can use web site.
Warning: get_class() expects parameter 1 to be object, boolean given in >C:\xampp\htdocs\magento\app\code\core\Mage\Core\Model\App.php on line 1340
0 [internal function]: mageCoreErrorHandler(2, 'get_class() exp...', 'C:\xampp\htdocs...', >1340, Array) #1 C:\xampp\htdocs\magento\app\code\core\Mage\Core\Model\App.php(1340): >get_class(false) #2 C:\xampp\htdocs\magento\app\code\core\Mage\Core\Model\App.php(1317): >Mage_Core_Model_App->_callObserverMethod(false, 'check', Object(Varien_Event_Observer)) #3 >C:\xampp\htdocs\magento\app\Mage.php(447): Mage_Core_Model_App->dispatchEvent('controller_fron...', Array) #4 >C:\xampp\htdocs\magento\app\code\core\Mage\Core\Controller\Varien\Front.php(147): ?>Mage::dispatchEvent('controller_fron...', Array) #5 >C:\xampp\htdocs\magento\app\code\core\Mage\Core\Model\App.php(749): ?>Mage_Core_Controller_Varien_Front->init() #6 >C:\xampp\htdocs\magento\app\code\core\Mage\Core\Model\App.php(1094): Mage_Core_Model_App->_initFrontController() #7 >C:\xampp\htdocs\magento\app\code\core\Mage\Core\Model\App.php(354): Mage_Core_Model_App->getFrontController() #8 C:\xampp\htdocs\magento\app\Mage.php(683): Mage_Core_Model_App->run(Array) #9 C:\xampp\htdocs\magento\index.php(87): Mage::run('', 'store') #10 {main}
Any help or guidance would we appreciated.