Fatal error: Uncaught Error: Class "Illuminate\Filesystem\FilesystemAdapter" not found in /opt/lampp/htdocs/msjchat/vendor/laravel/framework/src/Illuminate/Filesystem/LocalFilesystemAdapter.php:9 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjchat/vendor/laravel/framework/src/Illuminate/Filesystem/LocalFilesystemAdapter.php on line 9