( ! ) Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Calculation\Statistical\VarianceBase' not found in C:\wamp64\www\proyects\POS\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Statistical\Variances.php on line 8
( ! ) Error: Class 'PhpOffice\PhpSpreadsheet\Calculation\Statistical\VarianceBase' not found in C:\wamp64\www\proyects\POS\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Statistical\Variances.php on line 8
Call Stack
#	Time	Memory	Function	Location
1	0.0315	384144	{main}( )	...\Variances.php:0