( ! ) Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\LookupRef\LookupBase" not found in C:\wamp64\www\IHTS - Copie 52\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\LookupRef\XLookup.php on line 11
( ! ) Error: Class "PhpOffice\PhpSpreadsheet\Calculation\LookupRef\LookupBase" not found in C:\wamp64\www\IHTS - Copie 52\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\LookupRef\XLookup.php on line 11
Call Stack
#	Time	Memory	Function	Location
1	0.0154	547120	{main}( )	...\XLookup.php:0