( ! ) Fatal error: Uncaught Error: Interface 'PhpOffice\PhpSpreadsheet\Calculation\Engine\Operands\Operand' not found in C:\Users\Lenovo\Documents\college\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Engine\Operands\StructuredReference.php on line 11
( ! ) Error: Interface 'PhpOffice\PhpSpreadsheet\Calculation\Engine\Operands\Operand' not found in C:\Users\Lenovo\Documents\college\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Engine\Operands\StructuredReference.php on line 11
Call Stack
#	Time	Memory	Function	Location
1	0.1545	365776	{main}( )	...\StructuredReference.php:0