Fatal error: Uncaught Error: Interface "League\Container\Argument\LiteralArgumentInterface" not found in I:\www\pvcStruct\vendor\league\container\src\Argument\LiteralArgument.php:9 Stack trace: #0 {main} thrown in I:\www\pvcStruct\vendor\league\container\src\Argument\LiteralArgument.php on line 9