Fatal error: Uncaught Error: Interface "Prophecy\Promise\PromiseInterface" not found in C:\Apache24_x64\htdocs\ipad\vendor\phpspec\prophecy\src\Prophecy\Promise\ReturnArgumentPromise.php:23 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ipad\vendor\phpspec\prophecy\src\Prophecy\Promise\ReturnArgumentPromise.php on line 23