( ! ) Fatal error: Uncaught Error: Undefined constant "PHPEXCEL_ROOT" in C:\wamp64\www\crop_db\libs\phpoffice\PHPExcel\Autoloader.php on line 77
( ! ) Error: Undefined constant "PHPEXCEL_ROOT" in C:\wamp64\www\crop_db\libs\phpoffice\PHPExcel\Autoloader.php on line 77
Call Stack
#	Time	Memory	Function	Location
1	0.0001	447944	{main}( )	...\Autoloader.php:0
2	0.0001	538872	PHPExcel_Autoloader::Load( $pClassName = 'PHPExcel_Shared_String' )	...\Autoloader.php:36