Fatal error: Uncaught Error: Interface 'Prophecy\Promise\PromiseInterface' not found in /home/noct-c/www/tanakahashi/vendor/phpspec/prophecy/src/Prophecy/Promise/ReturnArgumentPromise.php:23 Stack trace: #0 {main} thrown in /home/noct-c/www/tanakahashi/vendor/phpspec/prophecy/src/Prophecy/Promise/ReturnArgumentPromise.php on line 23