Fatal error: Call to a member function getKeyName(

问题:

I am new in joomla . i have created a joomla component and when i click on new button in admin then i am getting such error.

Fatal error: Call to a member function getKeyName() on a non-object in C:\xampp\htdocs\Joomla1\libraries\joomla\application\component\modeladmin.php on line 801

Please help

回答1:

The problem is cause by your JTable class. Make sure you have correct filename and class name in administrator/components/com_YOUREXTENSION/tables/ You can find example in any core Joomla extension.

回答2:

public function getTable($type = 'Category', $prefix = 'CatalogTable', $config = array())

{
    return JTable::getInstance($type, $prefix, $config);
}

Check your $prefix param!I also just this faulty. My component is: com_catalog, and the $prefix = 'CatalogTable'