( ! ) Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Mapping\Loader\LoaderInterface" not found in /home/homes/marienoellerichmond/sites/Symfony-recipes/my_project_directory/vendor/symfony/serializer/Mapping/Loader/FileLoader.php on line 21
( ! ) Error: Interface "Symfony\Component\Serializer\Mapping\Loader\LoaderInterface" not found in /home/homes/marienoellerichmond/sites/Symfony-recipes/my_project_directory/vendor/symfony/serializer/Mapping/Loader/FileLoader.php on line 21
Call Stack
#	Time	Memory	Function	Location
1	0.0117	360448	{main}( )	.../FileLoader.php:0