( ! ) Fatal error: Interface 'PHPExcel_IComparable' not found in F:\konplast\xampp\htdocs\gkp_dataset\api\PHPExcel\Worksheet\BaseDrawing.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0185	176832	{main}( )	..\BaseDrawing.php:0