( ! ) 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	0.0016	234640	{main}( )	...\operation_columns.php:0
2	0.0025	251928	include_once( 'C:\wamp64\www\components\grid\columns.php' )	...\operation_columns.php:6
3	0.0078	377200	include( 'C:\wamp64\www\components\grid\columns\abstract_wrapped_dataset_field_view_column.php' )	...\columns.php:12
4	0.0162	656648	require_once( 'C:\wamp64\www\components\common_utils.php' )	...\abstract_wrapped_dataset_field_view_column.php:4
5	0.0175	675224	include_once( 'C:\wamp64\www\components\utils\dataset_utils.php' )	...\common_utils.php:7
6	0.0233	1087544	include_once( 'C:\wamp64\www\components\dataset\dataset.php' )	...\dataset_utils.php:3
7	0.0264	1266712	include_once( 'C:\wamp64\www\database_engine\engine.php' )	...\dataset.php:3
8	0.0352	1631240	include_once( 'C:\wamp64\www\database_engine\commands.php' )	...\engine.php:5
9	0.0381	1695272	include_once( 'C:\wamp64\www\components\error_utils.php' )	...\commands.php:6
10	0.0473	2105400	include_once( 'C:\wamp64\www\components\renderers\list_renderer.php' )	...\error_utils.php:4
11	0.0535	2455672	include_once( 'C:\wamp64\www\components\renderers\renderer.php' )	...\list_renderer.php:3
12	0.0662	3273000	include_once( 'C:\wamp64\www\components\grid\grid.php' )	...\renderer.php:3
13	0.0683	3300592	include_once( 'C:\wamp64\www\components\editors\editors.php' )	...\grid.php:5
14	0.1244	4442312	include_once( 'C:\wamp64\www\components\editors\cascading_combobox.php' )	...\editors.php:22
15	0.1263	4532120	include_once( 'C:\wamp64\www\components\editors\cascading_editor.php' )	...\cascading_combobox.php:3
16	0.1366	5192312	include_once( 'C:\wamp64\www\components\page\page.php' )	...\cascading_editor.php:6
17	0.1827	6360280	include_once( 'C:\wamp64\www\components\dataset\table_dataset.php' )	...\page.php:18