Fatal error: Uncaught Error: Interface "Psr\Http\Message\UriFactoryInterface" not found in /Users/ppss/Sites/PPSS/api/vendor/slim/http/src/Factory/DecoratedUriFactory.php:17 Stack trace: #0 {main} thrown in /Users/ppss/Sites/PPSS/api/vendor/slim/http/src/Factory/DecoratedUriFactory.php on line 17