( ! ) Fatal error: Class 'Dataset' not found in C:\wamp64\www\components\dataset\table_dataset.php on line 10
Call Stack
#	Time	Memory	Function	Location
1	0.0012	236880	{main}( )	...\operation_columns.php:0
2	0.0025	254192	include_once( 'C:\wamp64\www\components\grid\columns.php' )	...\operation_columns.php:6
3	0.0083	379416	include( 'C:\wamp64\www\components\grid\columns\abstract_wrapped_dataset_field_view_column.php' )	...\columns.php:12
4	0.0207	658800	require_once( 'C:\wamp64\www\components\common_utils.php' )	...\abstract_wrapped_dataset_field_view_column.php:4
5	0.0223	677376	include_once( 'C:\wamp64\www\components\utils\dataset_utils.php' )	...\common_utils.php:7
6	0.0283	1089704	include_once( 'C:\wamp64\www\components\dataset\dataset.php' )	...\dataset_utils.php:3
7	0.0320	1268912	include_once( 'C:\wamp64\www\database_engine\engine.php' )	...\dataset.php:3
8	0.0419	1633520	include_once( 'C:\wamp64\www\database_engine\commands.php' )	...\engine.php:5
9	0.0452	1697552	include_once( 'C:\wamp64\www\components\error_utils.php' )	...\commands.php:6
10	0.0554	2107656	include_once( 'C:\wamp64\www\components\renderers\list_renderer.php' )	...\error_utils.php:4
11	0.0618	2457848	include_once( 'C:\wamp64\www\components\renderers\renderer.php' )	...\list_renderer.php:3
12	0.0752	3275072	include_once( 'C:\wamp64\www\components\grid\grid.php' )	...\renderer.php:3
13	0.0780	3302664	include_once( 'C:\wamp64\www\components\editors\editors.php' )	...\grid.php:5
14	0.1412	4444224	include_once( 'C:\wamp64\www\components\editors\cascading_combobox.php' )	...\editors.php:22
15	0.1431	4534072	include_once( 'C:\wamp64\www\components\editors\cascading_editor.php' )	...\cascading_combobox.php:3
16	0.1535	5194080	include_once( 'C:\wamp64\www\components\page\page.php' )	...\cascading_editor.php:6
17	0.2008	6362096	include_once( 'C:\wamp64\www\components\dataset\table_dataset.php' )	...\page.php:18