( ! ) Fatal error: Class 'Dataset' not found in C:\wamp64\www\components\dataset\query_dataset.php on line 6
Call Stack
#	Time	Memory	Function	Location
1	0.0022	262240	{main}( )	...\view_based_dataset.php:0
2	0.0040	301320	include_once( 'C:\wamp64\www\components\dataset\table_dataset.php' )	...\view_based_dataset.php:3
3	0.0095	713656	include_once( 'C:\wamp64\www\components\dataset\dataset.php' )	...\table_dataset.php:3
4	0.0129	892848	include_once( 'C:\wamp64\www\database_engine\engine.php' )	...\dataset.php:3
5	0.0253	1367296	include_once( 'C:\wamp64\www\database_engine\commands.php' )	...\engine.php:5
6	0.0313	1482832	include_once( 'C:\wamp64\www\components\error_utils.php' )	...\commands.php:6
7	0.0411	1892984	include_once( 'C:\wamp64\www\components\renderers\list_renderer.php' )	...\error_utils.php:4
8	0.0470	2243352	include_once( 'C:\wamp64\www\components\renderers\renderer.php' )	...\list_renderer.php:3
9	0.0599	3060808	include_once( 'C:\wamp64\www\components\grid\grid.php' )	...\renderer.php:3
10	0.0624	3088400	include_once( 'C:\wamp64\www\components\editors\editors.php' )	...\grid.php:5
11	0.1224	4228928	include_once( 'C:\wamp64\www\components\editors\cascading_combobox.php' )	...\editors.php:22
12	0.1244	4319776	include_once( 'C:\wamp64\www\components\editors\cascading_editor.php' )	...\cascading_combobox.php:3
13	0.1348	4979792	include_once( 'C:\wamp64\www\components\page\page.php' )	...\cascading_editor.php:6
14	0.2197	7456424	include_once( 'C:\wamp64\www\components\dataset\query_dataset.php' )	...\page.php:20