Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Container\ContextualBindingBuilder" not found in /home/deborapsol/laravel/vendor/laravel/framework/src/Illuminate/Container/ContextualBindingBuilder.php:8 Stack trace: #0 {main} thrown in /home/deborapsol/laravel/vendor/laravel/framework/src/Illuminate/Container/ContextualBindingBuilder.php on line 8