error

if ( ! class_exists( 'WP_List_Table' ) )
	require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' )

.if ( ! class_exists( 'WP_List_Table' ) ) {
	/**
	 * List table class for handling plugins.
	 *
	 * Extends the WP_List_Table class to provide a future-compatible
	 * way of listing out all required/recommended plugins.
	 *
	 * Gives users an interface similar to the Plugin Administration
	 * area with similar (albeit stripped down) capabilities.
	 *
	 * This class also allows for the bulk install of plugins.
	 *
	 * @since 2.2.0
	 *
	 * @package TGM-Plugin-Activation
	 * @author Thomas Griffin <thomas@thomasgriffinmedia.com>
	 * @author Gary Jones <gamajo@gamajo.com>
	 */
	class TGMPA_List_Table extends WP_List_Table {

		/**
		 * References parent constructor and sets defaults for class.
		 *
		 * The constructor also grabs a copy of $instance from the TGMPA class
		 * and stores it in the global object TGM_Plugin_Activation::$instance.
		 *
		 * @since 2.2.0
		 *
		 * @global unknown $status
		 * @global string $page
		 */
		public function __construct() {

			global $status, $page;

			parent::__construct(
				array(
					'singular' => 'plugin',
					'plural'   => 'plugins',
					'ajax'     => false,
				)
			);